ATA 100 Chapters

050213 ATA 100 Chapters

wwws-techentcomata100htm 123

AIRCRAFT PARTS MANUFACTURING ASSISTANCE

(PMA)

DAR SERVICES

ATA 100 CHAPTER AND SECTION HEADINGS

01 INTRODUCTION05 PERIODIC INSPECTIONS06 DIMENSIONS AND AREAS07 LIFTING AND SHORING08 LEVELING AND WEIGHING09 TOWING AND TAXIING10 PARKING MOORING STORAGE AND RETURN TO SERVICE11 PLACARDS AND MARKINGS12 SERVICING - ROUTINE MAINTENANCE18 VIBRATION AND NOISE ANALYSIS (HELICOPTER ONLY)20 STANDARD PRACTICES - AIRFRAME21 AIR CONDITIONING22 AUTO FLIGHT23 COMMUNICATIONS24 ELECTRICAL POWER25 EQUIPMENT FURNISHINGS26 FIRE PROTECTION27 FLIGHT CONTROLS28 FUEL29 HYDRAULIC POWER30 ICE AND RAIN PROTECTION31 INDICATING RECORDING SYSTEMS32 LANDING GEAR33 LIGHTS34 NAVIGATION35 OXYGEN36 PNEUMATIC37 VACUUM38 WATER WASTE39 ELECTRICAL - ELECTRONIC PANELS AND MULTIPURPOSE COMPONENTS41 WATER BALLAST45 CENTRAL MAINTENANCE SYSTEM (CMS)46 INFORMATION SYSTEMS49 AIRBORNE AUXILIARY POWER51 STANDARD PRACTICES AND STRUCTURES - GENERAL52 DOORS53 FUSELAGE54 NACELLES PYLONS55 STABILIZERS56 WINDOWS57 WINGS60 STANDARD PRACTICES - PROPELLER ROTOR61 PROPELLERS PROPULSORS62 MAIN ROTOR(S)63 MAIN ROTOR DRIVE(S)64 TAIL ROTOR65 TAIL ROTOR DRIVE66 ROTOR BLADE AND TAIL PYLON FOLDING67 ROTORS FLIGHT CONTROL70 STANDARD PRACTICES - ENGINE71 POWER PLANT - GENERAL72 ENGINE72(T) ENGINE - TURBINE TURBOPROP DUCTED FAN UNDUCTED FAN72(R) ENGINE - RECIPROCATING73 ENGINE - FUEL AND CONTROL



74 IGNITION75 BLEED AIR76 ENGINE CONTROLS77 ENGINE INDICATING78 EXHAUST79 OIL80 STARTING81 TURBINES (RECIPROCATING ENGINES)82 WATER INJECTION83 ACCESSORY GEAR BOXES (ENGINE DRIVEN)84 PROPULSION AUGMENTATION91 CHARTS

ATA DEFINITIONS OF AIRCRAFT GROUPS SYSTEMS AND SUB-SYSTEMS

CHAP SEC TITLE DESCRIPTION

GROUP DEFINITION mdash AIRCRAFT The complete operational unit Includes dimensions and areaslifting and shoring leveling and weighing towing and taxiingparking and mooring required placards servicing

01 INTRODUCTION

01 OPERATIONS INFORMATION

05 PERIODIC INSPECTIONS Manufacturers recommended time limits for inspectionsmaintenance checks and inspections (both scheduled andunscheduled)

-00 GENERAL

-10 TIME LIMITS Those manufacturer recommended time limits for inspectionsmaintenance and overhaul of the aircraft its systems and unitsand life of parts For engine manufacturers this will include the flightcycle lives of major rotating components and other itemsdesignated critical

-20 SCHEDULED MAINTENANCECHECKS

Those manufacturer recommended maintenance checks andinspections of the aircraft its systems and units dictated by thetime limits specified in -10 above This section shall list in moredetail the items which are outlined on the airline job forms (usuallyby title only) and shall cross -reference the detailed proceduresincluded in the individual Maintenance Practices

-30 [AS REQUIRED] Reserved for use in those cases where the number of breakoutsprovided by the fourth digit of the -20 breakout is not sufficient tocover all of the maintenance checks dictated by subsystem -10above NOTE Inclusion of the data described in -10 through -40above in any manual or manual publication is specificallyprohibited unless required by government regulation Airlines desirethe manufacturers recommended time limits and scheduledmaintenance checks but these should be provided in a separatedocument

-40

-50 UNSCHEDULED MAINTENANCECHECKS

Those maintenance checks and inspections on the aircraft itssystems and units which are dictated by special or unusualconditions which are not related to the time limits specified in -10above Includes inspections and checks such as hard landingoverweight landing bird strike turbulent air lightning strike slushingestion radioactive contamination maintenance checks prior toengine-out ferry etc

06 DIMENSIONS AND AREAS Those charts diagrams and text which show the areadimensions stations access doors zoning and physicallocations of the major structural members of the aircraft Includesan explanation of the system of zoning and measurement used

07 LIFTING AND SHORING This chapter shall include the necessary procedures to lift andshore aircraft in any of the conditions to which it may be subjected



Includes lifting and shoring procedures that may be employedduring aircraft maintenance and repair

-00 GENERAL

-10 JACKING Provides information relative to jack points adapters tail supportsbalance weights jacks and jacking procedures utilized duringaircraft maintenance and repair

-20 SHORING Those instructions necessary to support the aircraft duringmaintenance and repair Includes information on shoring materialsand equipment contour dimensions shoring locations etc

08 LEVELING AND WEIGHING This chapter shall include the necessary information to properlylevel the aircraft for any of the various maintenance overhaul ormajor repairs which might become necessary during the life of theaircraft It shall also include those units or components which arespecifically dedicated to record store or compute weight andbalance data Includes those maintenance practices necessary toprepare the aircraft for weighing

-00 GENERAL

-10 WEIGHING AND BALANCING Those units or components dedicated to the specific function ofrecording storing or computing weight and balance data

-20 LEVELING Provides information relative to those units or componentsdedicated to the specific function of leveling the aircraft

09 TOWING AND TAXIING Those instructions necessary to tow and taxi the aircraft Chartsshowing location of attachment points turning radius etc shall beincluded Includes those maintenance practices necessary toprepare the aircraft for towing and taxiing

-00 GENERAL

-10 TOWING Those instructions necessary to tow or push the aircraft in normalor other conditions such as towing with engines removed etc Shallinclude equipment and materials required such as towing vehiclestow bars towing cables etc procedures to be used such asground turning techniques use of interphone and brakesconnection of electrical power etc precautions and limitationssuch as use of landing gear and control surface locks minimumturning radius maximum towing and pushing loads on nose landinggear etc

-20 TAXIING Those instructions necessary to taxi the aircraft in normal orabnormal conditions such as adverse weather conditions etc Shallinclude procedures to be used such as use of engines interphoneand brakes ground turning techniques etc precautions andlimitations such as jet intake and exhaust danger areas minimumturning radius friction coefficients for various ground conditionsetc

10 PARKING MOORING STORAGE AND RETURN TOSERVICE

Those instructions necessary to park store moor and prepare theaircraft for service in any of the conditions to which it may besubjected Charts showing location of landing gear and controlsurface locks blanking plugs and covers mooring points etcshall be included Includes those maintenance practices necessaryto prepare the aircraft for parking mooring or storage

-00 GENERAL

-10 PARKING STORAGE Those instructions necessary to park or store the aircraft in normalor abnormal conditions such as with engines removed or aircraftdamaged for short or long terms Shall include equipment andmaterials required such as landing gear and control surface lockswheel chocks blanking plugs and covers cocooning materials etcprocedures such as periodic engine running control or drainage offluid systems static grounding etc precautions and limitationssuch as landing gear strut pressures and wheel rotation control oflifted equipment etc

-20 MOORING Those instructions necessary to moor or picket the aircraft innormal or abnormal conditions or with engines removed etc forshort or long terms in extremes of weather conditions Shall includeequipment and materials required such as wheel chocks mooringblocks mooring cables etc procedures such as ballasting etcprecautions and limitations such as control in high wind conditionsetc

-30 RETURN TO SERVICE Those instructions necessary to prepare the aircraft for operationfollowing mooring parking or a period of storage

11 PLACARDS AND MARKINGS All procurable placards labels etc shall be included in the



illustrated Parts Catalog They shall be illustrated showing the partnumber Legend and Location The Maintenance Manual shallprovide the approximate Location (ie FWD -UPPER -RH) andillustrate each placard label marking self -illuminating sign etcrequired for safety information maintenance significant informationor by government regulations Those required by governmentregulations shall be so identified

-00 GENERAL

-10 EXTERIOR COLOR SCHEMES ANDMARKINGS

This sub-systemsection breakdown reserved for airline use

-20 EXTERIOR PLACARDS ANDMARKINGS

Those placards and markings required for ground servicinginstructions inspections cautions warnings etc

-30 INTERIOR PLACARDS Those placards markings self-illuminating signs etc required forinterior general and emergency information instructions cautionswarnings etc

12 SERVICING - ROUTINE MAINTENANCE Those instructions for the replenishment of fluids scheduled andunscheduled servicing applicable to the whole airplane Theinformation shall be concise and preferably in tabular or chart formPrecautions to be observed in servicing a particular tank orreservoir such as grounding and prevention of fire hazards shall beclearly stated Instructions regarding access to any out-of-the-wayor unusual places requiring service shall be given A diagramshowing location of regular and emergency servicing points shall beincluded No-step areas or walkways leading to any tank in awing or hull with necessary precautions shall be indicated

-00 GENERAL

-10 REPLENISHING Those instructions necessary for the replenishment of fuel oilhydraulic fluid water other fluids tire pressure etc Tank andreservoir capacities in US imperial and metric measure shall beincluded ANA or other standard specification number and grade (ifapplicable) of fuel oil fluid and other material used shall be givenSpecifications and grades should be shown grouped on one page tofacilitate revisions For fuel give expansion volume total fuelcapacity sump capacity net fuel capacity (as applicable) for eachtank For oil give allowance for expansion

-20 SCHEDULED SERVICING Those instructions necessary to carry out servicing that may bescheduled Includes instructions such as those for periodiclubrication of components radioactivity decontamination aircraftexternal and internal cleaning disinfection of aircraft sanitation ofdrinking water etc Shall not include lubrication proceduresrequired for the accomplishment of maintenance practices

-30 UNSCHEDULED SERVICING Those instructions necessary to carry out servicing that is normallyunscheduled Includes instructions such as those for ice and snowremoval from parked aircraft etc

18 VIBRATION AND NOISE ANALYSIS(HELICOPTER ONLY)

This chapter shall provide the necessary information to enableoperators to monitor and diagnose vibration and noise levels inorder to identify imbalance damage or misalignment in helicopterdynamic and structural components

-00 GENERAL

-10 VIBRATION ANALYSIS Those instructions necessary to monitor measure diagnose andlocate sources of vibration in dynamic and structural componentsThe instructions shall cover related maintenance procedures suchas main rotor tracking tail rotor balancing main rotor headabsorber tuningchecking general airframe vibration monitoring etc

-20 NOISE ANALYSIS Those instructions necessary to monitor measure diagnose andlocate sources of noise in dynamic and structural components

GROUP DEFINITION - AIRFRAME SYSTEMS All airframe systems except the Power Plant package

20 STANDARD PRACTICES - AIRFRAME GENERAL

21 AIR CONDITIONING Those units and components which furnish a means ofpressurizing heating cooling moisture controlling filtering andtreating the air used to ventilate the areas of the fuselage within thepressure seals Includes cabin supercharger equipment coolingheater heater fuel system expansion turbine valves scoopsducts etc

-00 GENERAL



-10 COMPRESSION That portion of the system and its controls which suppliescompressed air Includes items such as controls and indicatingsystems related to the compressors wiring etc Does not includethe pressure control and indicating system for the cabinpressurization

-20 DISTRIBUTION That portion of the system used to induct and distribute airIncludes equipment rack cooling systems and items such asblowers scoops ducting inlets check valves wiring etc Doesnot include valves which are part of pressurization and temperaturecontrol

-30 PRESSURIZATION CONTROL That portion of the system used to control the pressure within thefuselage Includes items such as control valves relief valvesindicators switches amplifiers wiring etc

-40 HEATING That portion of the system and its controls which supply heated airIncludes items such as heater panels and other units fuel systemand control ignition indicating systems related to heater operationwiring etc Does not include temperature control and indicatingsystems

-50 COOLING That portion of the system and its controls which supply cooled airIncludes items such as the cooling unit indicating systems relatedto the cooler operation wiring etc Does not include temperaturecontrol and indicating systems

-60 TEMPERATURE CONTROL That portion of the system used to control the temperature of theair Includes items such as control valves thermal sensing devicesswitches indicators amplifiers wiring etc

-70 MOISTURE AIR CONTAMINANTCONTROL

That portion of the system used to control moisture in the air tocontrol ozone concentrations to filter radioactive debris fromconditioned air and to treat the air with deodorizers insecticidesetc

22 AUTO FLIGHT Those units and components which furnish a means ofautomatically controlling the flight of the aircraft Includes thoseunits and components which control direction heading attitudealtitude and speed

-00 GENERAL

-10 AUTOPILOT That portion of the system that uses radioradar signals directionaland vertical references air data (pitot static) computed flight pathdata or manually induced inputs to the system to automaticallycontrol the flight path of the aircraft through adjustment to thepitchrollyaw axis or wing lift characteristics and provide visualcues for flight path guidance ie Integrated Flight Director Thisincludes power source devices interlocking devices and amplifyingcomputing integrating controlling actuating indicating andwarning devices such as computers servos control panelsindicators warning lights etc

-20 SPEED - ATTITUDE CORRECTION That portion of the system that automatically maintains safe flightconditions by correcting for effects of speed and out -of-trimconditions by such means as automatic trim mach trim or speedstability and mach feel This includes sensing computingactuating indicating internal monitoring and warning devices etc

-30 AUTO THROTTLE That portion of the system that automatically controls the positionof the throttles to properly manage engine power during all phasesof flightattitude This includes engaging sensing computingamplifying controlling actuating and warning devices such asamplifiers computers servos limit switches clutches gear boxeswarning lights etc

-40 SYSTEM MONITOR That which provides separate or external monitoringremote readout(for maintenance or other purposes) not directly related to theinternal system monitoring (for system integrity flight crew warning)This includes sensing computing indicating and warning devicescontrol panels etc

-50 AERODYNAMIC LOAD ALLEVIATING The system or portion of the system that automaticallycorrectsprovides for gust loading upset aerodynamicaugmentationalleviationsuppression ride control etc Thisincludes sensing computing actuating indicating internalmonitoring warning devices etc

23 COMMUNICATIONS Those units and components which furnish a means ofcommunicating from one part of the aircraft to another and betweenthe aircraft or ground stations includes voice data C -Wcommunicating components PA system inter -com and tapereproducers - record player

-00 GENERAL



-10 SPEECH COMMUNICATIONS That portion of the system which utilizes voice modulatedelectromagnetic waves to transmit andor receive messages fromair to air or air to ground installations Includes HF VHFUHF etc inflight telephone communication transmitting ampreceiving equipment

-15 SATCOM That portion of the system which utilizes satellite communicationsystems (SATCOM)

-20 DATA TRANSMISSION ANDAUTOMATIC CALLING

That portion of the system which presents information derived frompulse coded transmissions Includes Teleprinter Selcal CalselACARS etc

-30 PASSENGER ADDRESSENTERTAINMENT AND COMFORT

That portion of the system used to address and entertain thepassengers including installations for increased cabin comfortsuch as active noise control systems Includes items such asamplifiers speakers handsets reproducers control panels control-units etc Also includes items of audio video and film equipment

-40 INTERPHONE That portion of the system which is used by flight and groundpersonnel to communicate between areas on the aircraft Includesitems such as amplifier handset etc Does not include theinterphone system within the flight compartment which is part of theintegrating system

-50 AUDIO INTEGRATING That portion of the system which controls the output of thecommunications and navigation receivers into the flight crewheadphones and speakers and the output of the flight crewmicrophones into the communications transmitters Includes itemssuch as audio selector control panel micro-phones headphonescockpit loudspeakers etc

-60 STATIC DISCHARGING That portion of the system which is used to dissipate staticelectricity

-70 AUDIO amp VIDEO MONITORING Those installations that record or monitor crew or passengerconversation or movement for security or safety purposes Includesvoice recorders television monitors externally mounted cameraetc

-80 INTEGRATED AUTOMATIC TUNING That portion of the system which maintains integrated control of theoperating frequencies of communication and navigationtransmitterreceivers after either a manually inserted command or apreprogrammed integrated flight system command Includes suchitems as integrated frequency selector panels digital frequencycontrol computers integrated frequency display panels etc

24 ELECTRICAL POWER Those electrical units and components which generate control andsupply AC andor DC electrical power for other systems includinggenerators and relays inverters batteries etc through thesecondary busses Also includes common electrical items such aswiring switches connectors etc

-00 GENERAL

-10 GENERATOR DRIVE Mechanical devices that drive the generators at a desired RPMIncludes items such as oil system connecting devices indicatingand warning systems for the drive etc

-20 AC GENERATION That portion of the systems used to generate regulate control andindicate AC electrical power Includes items such as inverters ACgeneratorsalternators control and regulating componentsindicating systems etc all wiring to but not including mainbusses

-30 DC GENERATION That portion of the systems used to generate regulate control andindicate DC electrical power Includes items such as generatorsalternators transformers rectifiers batteries control and regulatingcomponents indicating systems etc all wiring to but not includingmain busses

-40 EXTERNAL POWER That portion of the system within the aircraft which connectsexternal electrical power to the aircrafts electrical system Includesitems such as receptacles relays switches wiring warning lightsetc

-50 AC ELECTRICAL LOADDISTRIBUTION

That portion of the system which provides for connection of ACpower to using systems Includes items such as AC main andsecondary busses main system circuit breakers power systemdevices etc

-60 DC ELECTRICAL LOADDISTRIBUTION

That portion of the system which provides for connection of DCpower to using systems Includes items such as DC main andsecondary busses main system circuit breakers power systemdevices etc

25 EQUIPMENT FURNISHINGS Those removable items of equipment and furnishings externallymounted on the aircraft or contained in the flight passenger cargo



and accessory compartments Includes emergency buffet andlavatory equipment Does not include structures of equipmentassigned specifically to other chapters

-00 GENERAL

-10 FLIGHT COMPARTMENT The compartment above the floor and between the forwardpassenger partition and the forward pressure dome Includes itemssuch as flight crew seats tables pilot check lists and foodcontainers wardrobes curtains manuals electronic equipmentrack spare bulbs fuses etc Does not include cargocompartments

-20 PASSENGER COMPARTMENT The areas in which the passengers are seated Includes loungesbut not dressing rooms Includes items such as seats berthsoverhead storage compartments curtains wall coverings carpetsmagazine racks wardrobes movable partitions wall typethermometers spare bulbs fuses etc

-30 BUFFET GALLEY The areas in which food and beverages are stored and preparedIncludes items such as removable and fixed cabinets ovensrefrigerators garbage containers dish racks coffee maker anddispensers containers electrical outlets wiring etc

-40 LAVATORIES The toilet and dressing room areas containing wash basinsdressing tables and water closet Includes items such as mirrorsseats cabinets dispensing equipment electrical outlets wiringetc Wash basins and water closets are included in Chapter 38

-50 CARGO COMPARTMENTS Those compartments for storage of cargo and those componentswhich are or can be mounted on the aircraft and used toloadunload restrain guide or service cargo Includes drivesystems rollers latches restraint nets etc

-60 EMERGENCY Those items of equipment carried for use in emergency proceduresIncludes items such as evacuation equipment life rafts jacketsemergency locator transmitters underwater locator devices firstaid kit incubators oxygen tents medical stretchers landing andsignal flares drag parachutes evacuation signaling systems etcDoes not include fire extinguishers oxygen equipment or masks

-70 ACCESSORY COMPARTMENTS Those compartments used for the housing of various componentsor accessories Includes wheel wells tail-hydraulic-electricalelectronic equipment racks main battery structure etc

-80 INSULATION Those insulation blankets which are used for heat and soundinsulation Includes flight compartments passenger compartmentcargo and accessory compartment insulation etc

26 FIRE PROTECTION Those fixed and portable units and components which detect andindicate fire or smoke and store and distribute fire extinguishingagent to all protected areas of the aircraft including bottles valvestubing etc

-00 GENERAL

-10 DETECTION That portion of the system which is used to sense and indicate thepresence of overheat smoke or fire

-20 EXTINGUISHING That portion of those fixed or portable systems which is used toextinguish fire

-30 EXPLOSION SUPPRESSION That portion of the system which is used to sense indicate andextinguish a flame propagating into the fuel vent or scoop to preventan explosion in the fuel system

27 FLIGHT CONTROLS Those units and components which furnish a means of manuallycontrolling the flight attitude characteristics of the aircraft includingitems such as hydraulic boost system rudder pedals controlsmounting brackets etc Also includes the functioning andmaintenance aspects of the flaps spoilers and other controlsurfaces but does not include the structure which is covered in theStructures Chapters Does not include rotorcraft rotor controlswhich are covered in the Rotor Chapter 65

-00 GENERAL

-10 AILERON AND TAB That portion of the systems which controls the position andmovement of the aileronselevons and tabs Includes items such asthe control wheels cables boosters linkages control surfacesindicators etc

-20 RUDDER RUDDEVATOR AND TAB That portion of the systems which controls the position andmovement of the rudder ruddevator and rudder tabs Includesitems such as the rudder pedals tab control wheel cablesboosters linkages control surfaces position indicators etc

-30 ELEVATOR AND TAB That portion of the systems which controls the position and



movement of the elevator elevon and tabs Includes items such asthe control column stickshaker units automatic stall recoverydevices tab control wheels cables boosters linkages controlsurfaces position indicators stall warning systems etc

-40 HORIZONTAL STABILIZER STABILATOR

That portion of the system which controls the position andmovement of the horizontal stabilizercanard Includes items suchas control handle cables jackscrews motors warning systemslinkages control surfaces position indicators etc

-50 FLAPS That portion of the systems which controls the position andmovement of the trailing edge flaps Includes items such as controlhandles cables actuators warning systems linkages controlsurfaces position indicators etc

-60 SPOILER DRAG DEVICES ANDVARIABLE AERODYNAMIC FAIRINGS

That portion of the systems which controls the position andmovement of the spoilers drag devices and variable aerodynamicfairings Includes fairings Includes items such as control handlescables warning systems linkages spoilers drag devices positionindicators etc

-70 GUST LOCK AND DAMPER That portion of the systems which protects the control surfacesfrom movement by wind while the aircraft is on the ground Doesnot include locking the control by means of flight control boostsystem

-80 LIFT AUGMENTING That portion of the systems which controls the position andmovement of variable opening wings slots leading edge wing flapsand other similar auxiliary devices used for increasing aerodynamiclift Includes items such as control handles cables actuatorslinkages warning systems control surfaces position indicatorsetc Does not include trailing edge flaps

28 FUEL Those units and components which store and deliver fuel to theengine Includes engine driven fuel pumps for reciprocating enginesincludes tanks (bladder) valves boost pumps etc and thosecomponents which furnish a means of dumping fuel overboardIncludes integral and tip fuel tank leak detection and sealing Doesnot include the structure of integral or tip fuel tanks and the fuel cellbacking boards which are covered in the Structures Chapters anddoes not include fuel flow rate sensing transmitting and orindicating which are covered in Chapter 73

-00 GENERAL

-10 STORAGE That portion of the system which stores fuel Includes tank sealingbladder type cells ventilating system cell and tank inter -connectors over wing filler necks and caps etc Also includesreservoir feed pumping systems and reservoirs within the tankswhich are not part of the distribution system

-20 DISTRIBUTION - DRAIN VALVES That portion of the system which is used to distribute fuel from thefiller connector to the storage system and from the storage systemto and including the power plant fuel quick disconnect Includesitems such as plumbing pumps valves controls etc

-30 DUMP That portion of the system which is used to dump fuel overboardduring flight Includes items such as plumbing valves controlschutes etc

-40 INDICATING That portion of the system which is used to indicate the quantitytemperature and pressure of the fuel Includes pressure warningsystems for pumping systems within the tank etc Does notinclude engine fuel flow or pressure

29 HYDRAULIC POWER Those units and components which furnish hydraulic fluid underpressure (includes pumps regulators lines valves etc) to acommon point (manifold) for redistribution to other defined systems

-00 GENERAL

-10 MAIN That portion of the system which is used to store and deliverhydraulic fluid to using systems Includes items such as tanksaccumulators valves pumps levers switches cables plumbingwiring external connectors etc Does not include the supply valvesto the using systems

-20 AUXILIARY That portion of the system which is classified as auxiliaryemergency or standby and which is used to supplement or takethe place of the main hydraulic system Includes items such astanks and accumulators which are separate from the main systemhand pumps auxiliary pumps valves plumbing wiring etc

-30 INDICATING That portion of the system which is used to indicate the quantitytemperature and pressure of the hydraulic fluid Includes itemssuch as transmitters indicators wiring warning systems etc



30 ICE AND RAIN PROTECTION Those units and components which provide a means of preventingor disposing of formation of ice and rain on various parts of theaircraft Includes alcohol pump valves tanks propeller rotor anti-icing system wing heaters water line heaters pitot heaters scoopheaters windshield wipers and the electrical and heated air portionof windshield ice control Does not include the basic windshieldpanel For turbine type power plants using air as the anti-icingmedium engine anti-icing is contained under Air System

-00 GENERAL

-10 AIRFOIL That portion of the system which is used to eliminate or prevent theformation of ice on all airfoil surfaces Includes wings airfoilsections of the empennage and pylons

-20 AIR INTAKES That portion of the system which is used to eliminate or prevent theformation of ice in or around air intakes Includes power plantcowling anti-icing

-30 PITOT AND STATIC That portion of the system which is used to eliminate or prevent theformation of ice on the pitot and static systems

-40 WINDOWS WINDSHIELDS ANDDOORS

That portion of the system which is used to eliminate or prevent theformation of ice frost or rain on the windows windshields anddoors

-50 ANTENNAS AND RADOMES That portion of the system which is used to eliminate or prevent theformation of ice on antennas and radomes

-60 PROPELLERS ROTORS That portion of the system which is used to eliminate or prevent theformation of ice on propellers or rotors Includes all components upto but not including rotating assembly

-70 WATER LINES That portion of the system which is used to prevent the formation ofice in water supply and drain lines

-80 DETECTION That portion of the system which is used to detect and indicate theformation of ice

31 INDICATING RECORDING SYSTEMS Pictorial coverage of all instruments instrument panels andcontrols Procedural coverage of those systems which give visual oraural warning of conditions in unrelated systems Units whichrecord store or compute data from unrelated systems Includessystemsunits which integrate indicating instruments into a centraldisplay system and instruments not related to any specific system

-00 GENERAL

-10 INSTRUMENT AND CONTROLPANELS

Coverage of all panels fixed or movable with their replaceablecomponents such as instruments switches circuit breakersfuses etc Also includes general coverage of instrument panelvibrators and other panel accessories

-20 INDEPENDENT INSTRUMENTS Those instruments units and components which are not related tospecific systems Includes items such as inclinometers clocksetc

-30 RECORDERS Those systems and components used for recording data not relatedto specific systems Includes items such as flight recordersperformance or maintenance recorders VG recorders etc

-40 CENTRAL COMPUTERS Those systems and components used for computing data from anumber of different sources without a preponderance of functions inany one system Includes items such as Digital Core AvionicSystem (DCAS) stored check list emergency procedurescompany regulations etc for call up on a display integratedinstrument systems such as engine airplane power and centralwarning indicators when combined into a central display

-50 CENTRAL WARNING SYSTEMS Those systems and components which give audible or visualwarning of conditions in unrelated systems Includes items such asmaster warning or flight warning systems central instrumentwarning or caution and warning systems tone generatorsannunciators etc

-60 CENTRAL DISPLAY SYSTEMS Those systems and components which give visual display ofconditions in unrelated systems

-70 AUTOMATIC DATA REPORTINGSYSTEMS

Those systems and components used for collating and computingdata from unrelated systems and transmitting same automaticallyIncludes ASDAR systems and components

32 LANDING GEAR Those units and components which furnish a means of supportingand steering the aircraft on the ground or water and make itpossible to retract and store the landing gear in flight Includes tailskid assembly brakes wheels floats skids skis doors shockstruts tires linkages position indicating and warning systems



Also includes the functioning and maintenance aspects of thelanding gear doors but does not include the structure which iscovered in Chapter 52 DOORS

-00 GENERAL

-10 MAIN GEAR AND DOORS That portion of the system which provides the major support for theaircraft while on the ground Includes items such as shock strutsbogie axles drag struts linkages attach bolts etc

-20 NOSE GEAR TAIL GEAR ANDDOORS

That portion of the system which supports the nose of the aircraftwhile the aircraft is on the ground Includes items such as shockstruts drag struts linkages attach bolts etc

-30 EXTENSION AND RETRACTION That portion of the system which is used to extend and retract thelanding gear and open and close the landing gear doors Includesitems such as actuating mechanisms bogie trim bungees up anddown latches operating controls valves and motors cables wiringplumbing etc

-40 WHEELS AND BRAKES That portion of the system which provides for rolling and stoppingthe aircraft while on the ground and stopping wheel rotation afterretraction Includes items such as bearings tires valves de -boosters swivel glands anti-skid devices pressure indicatorsplumbing etc

-50 STEERING That portion of the system which is used to control the direction ofmovement of the aircraft on the ground Includes items such asactuating cylinders controls bogie swivel unlock etc

-60 POSITION WARNING AND GROUNDSAFETY SWITCH

That portion of the system which is used to indicate and warn of theposition of the landing geardoors Includes items such asswitches relays lights indicators horns wiring etc

-70 SUPPLEMENTARY GEAR - SKISFLOATS

Devices used to stabilize the aircraft while on the ground andprevent damage by ground contact Includes items such as shockstrut skid block wheels etc

33 LIGHTS Those units and components (electrically powered) which providefor external and internal illumination such as landing lights taxilights position lights rotating lights ice lights master warninglights passenger reading and cabin dome lights etc Includes lightfixtures switches and wiring Does not include warning lights forindividual systems or self -illuminating signs (see Chapter 11)

-00 GENERAL

-10 FLIGHT COMPARTMENT ANDANNUNCIATOR PANEL

The lighting sub-systems in the compartment above the floor andbetween the forward passenger partition and the forward pressuredome Does not include cargo compartment Includes direct andindirect illumination of work areas panels and instrumentsIncludes master warning light and warning light dimming systemswhere not integrated with a central audio or visual system under 31-50

-20 PASSENGER COMPARTMENT The lighting sub-systems in the areas in which the passengers areseated and in buffet galley lavatories lounges and coat roomsIncludes items such as direct and indirect illumination passengercall system lighted signs etc

-30 CARGO AND SERVICECOMPARTMENTS

The lighting sub-systems in the compartments for stowage of cargoand the housing of various components of accessories

-40 EXTERIOR LIGHTING The lighting sub-systems used to provide illumination outside of theaircraft Includes lights such as landing navigation positionindicating wing illumination rotating courtesy taxi etc

-50 EMERGENCY LIGHTING The separate and independent sub-system used to provideillumination in case of primary electrical power failure Includesitems such as inertia flashlights lanterns etc

34 NAVIGATION Those units and components which provide aircraft navigationalinformation Includes VOR pitot static ILS flight directorcompasses indicators etc

-00 GENERAL

-10 FLIGHT ENVIRONMENT DATA That portion of the system which senses environmental conditionsand uses the data to influence navigation Includes such items asCentral Air Data Computers pitotstatic systems air temperaturerate -of-climb airspeed high speed warning altitude altitudereporting altimeter correction system air disturbance detectionsystem etc

-20 ATTITUDE AND DIRECTION The portion of the system which uses magnetic or inertia forces tosense and display the direction or attitude of the aircraft Thisincludes sensing computing indicating and warning devices suchas magnetic compasses vertical and directional references



magnetic heading systems attitude director systems symbolgenerators turn and bank rate of turn amplifiers indicators etcIncludes Flight Director when it is not integral with the auto pilotcomputation

-30 LANDING AND TAXIING AIDS That portion of the system which provides guidance duringapproach landing and taxiing Includes items such as localizerglide slope ILS markers paravisual director ground guidancesystems etc

-40 INDEPENDENT POSITIONDETERMINING

That portion of the system which provides information to determineposition and is mainly independent of ground installations or orbitalsatellites Includes items such as inertial guidance systemsweather radar Doppler proximity warning collision avoidance startracker etc Also includes sextantsoctants etc

-50 DEPENDENT POSITIONDETERMINING

That portion of the system which provides information to determineposition and is mainly dependent on ground installations or orbitalsatellites Includes items such as DME transponders radiocompass LORAN VOR ADF OMEGA GLOBAL POSITIONINGetc

-60 FLIGHT MANAGEMENT COMPUTING That portion of the system which combines navigational data tocompute or manage the aircrafts geographical position ortheoretical flight path Includes items such as course computersflight management computers performance data computers andassociated control display units warning annunciators etc

35 OXYGEN Those units and components which store regulate and deliveroxygen to the passengers and crew including bottles relief valvesshut-off valves outlets regulators masks walk -around bottlesetc

-00 GENERAL

-10 CREW That portion of the system which furnishes oxygen to the crew

-20 PASSENGER That portion of the system which furnishes oxygen to thepassengers

-30 PORTABLE That portion of the system which has an independent oxygensupply and which can be transported about the airplane

36 PNEUMATIC Those units and components (Ducts and Valves) which deliver largevolumes of compressed air from a power source to connectingpoints for such other systems as air conditioning pressurizationdeicing etc

-00 GENERAL

-10 DISTRIBUTION That portion of the system which is used to distribute high or lowpressure air to using systems Includes items such as ductsvalves actuators heat exchangers controls etc Does not includethe supply valves to the using systems

-20 INDICATING That portion of the system which is used to indicate temperatureand pressure of the pneumatic system Includes temperature andpressure warning systems

37 VACUUM Those units and components used to generate deliver and regulatenegative air pressure including pumps regulators lines etcthrough and including the manifold

-00 GENERAL

-10 DISTRIBUTION That portion of the system which is used to distribute negativepressure air to using systems

-20 INDICATING That portion of the system which is used to indicate pressureIncludes pressure warning system

38 WATER WASTE Those fixed units and components which store and deliver for usefresh water and those fixed components which store and furnish ameans of removal of water and waste Includes wash basins toiletassemblies tanks valves etc

-00 GENERAL

-10 POTABLE That portion of the system which is used to store and deliver freshdrinking water Includes wash water system if the potable water isalso used for washing

-20 WASH That portion of the system which is used to store and deliver washwater which is not potable

-30 WASTE DISPOSAL That portion of the system which is used for disposal of water andwaste Includes items such as wash basins water closets flushing



systems etc

-40 AIR SUPPLY That portion of the system common to more than one sub -systemwhich is used for pressurizing supply tanks to insure fluid flow

39 ELECTRICAL - ELECTRONIC PANELSAND MULTIPURPOSE COMPONENTS

-00 GENERAL


-20 ELECTRICAL AND ELECTRONICEQUIPMENT RACKS

-30 ELECTRICAL AND ELECTRONICJUNCTION BOXES

-40 MULTIPURPOSE ELECTRONICCOMPONENTS

-50 INTEGRATED CIRCUITS

-60 PRINTED CIRCUIT CARDASSEMBLIES

41 WATER BALLAST Those units and components provided for the storage balancingcontrol filling discharge and dumping of water ballast Does notinclude units or components covered in Chapter 38

-00 GENERAL

-10 STORAGE That portion of the system which stores water solely for thepurpose of providing airship ballast Includes removable tanks(bladder cells) interconnecting balance pipes filler valves etc

-20 DUMP That portion of the system used to dump water ballast during flightIncludes valves remotedirect manualautomatic controls etc

-30 INDICATION That portion of the system used to indicate quantity condition andrelative distribution of the water ballast

45 CENTRAL MAINTENANCE SYSTEM(CMS)

Those units components and associated system which interfaceswith multiple aircraft systems Contains checkout and fault isolationprocedures using a central computer complex andor standard faultisolation procedures to locate a single system or componentmalfunction

-00 GENERAL

-05 CMS AIRCRAFT GENERAL Central Maintenance System interfaces with General Aircraftsystems and identification of maintenance functions related toAircraft General

-19

-20 CMS AIRFRAME SYSTEMS Central Maintenance System interfaces with Airframe Systemsand identification of maintenance functions related to AirframeSystems

-44

-45 CENTRAL MAINTENANCE SYSTEM Central Maintenance System That portion of the system whichinterfaces with other airplane systems flight line mechanics andradio communications Includes computers storage devicescontrol and display devices


-49

-50 CMS STRUCTURES Central Maintenance System interfaces with Structures andidentification of maintenance functions related to Structures

-59

-60 CMS PROPELLERS Central Maintenance System interfaces with Propeller andidentification of maintenance functions related to Propellers

-69

-70 CMS POWER PLANT Central Maintenance System interfaces with Power Plant andidentification of maintenance functions related to Power PlantNOTE SubsystemSection Code is selected to match applicablesystem interface For example 45 -21-XX would identify all airconditioning monitoring and testing provided by the CentralMaintenance System and would provide directions for using theCentral Maintenance System to execute those maintenancefunctions Detailed testing not capable of coverage in Chapter 45would be appropriately cross referenced and would be provided inChapter 21 Similarly 45 -32-XX would identify landing gearmonitoring and testing provided by the Central MaintenanceSystem 45 -45 -XX would identify the Central Maintenance Systemitself

-89



46 INFORMATION SYSTEMS Those units and components which furnish a means of storingupdating and retrieving digital information traditionally provided onpaper microfilm or microfiche Includes units that are dedicated tothe information storage and retrieval function such as the ElectronicLibrary mass storage and controller Does not include units orcomponents installed for other uses and shared with othersystems such as flight deck printer or general use display

-00 GENERAL

-10 AIRPLANE GENERAL INFORMATIONSYSTEMS

-20 FLIGHT DECK INFORMATIONSYSTEMS

That portion of the onboard information system that supports theflight deck systems flight deck crew and flight operations

-30 MAINTENANCE INFORMATIONSYSTEMS

That portion of the onboard flight information system that supportsall onboard maintenance system functions maintenancetechnicians and any ground based maintenance activity

-40 PASSENGER CABIN INFORMATIONSYSTEMS

That portion of the onboard information system that supports thepassenger cabin cabin operations and flight attendants

-50 MISCELLANEOUS INFORMATIONSYSTEMS

That portion of the onboard information system that supports otherfunctions as defined by the user that cannot be related to the flightdeck passenger cabin or maintenance

49 AIRBORNE AUXILIARY POWER Those airborne power plants (engines) which are installed on theaircraft for the purpose of generating and supplying a single type orcombination of auxiliary electric hydraulic pneumatic or otherpower Includes power and drive section fuel ignition and controlsystems also wiring indicators plumbing valves and ducts up tothe power unit Does not include generators alternators hydraulicpumps etc or their connecting systems which supply and deliverpower to their respective aircraft systems

-00 GENERAL

-10 POWER PLANT For definitions see Chapter 71

-20 ENGINE For definitions see Chapter 72

-30 ENGINE FUEL AND CONTROL For definitions see Chapter 73

-40 IGNITION STARTING For definitions see Chapter 74 and 80

-50 AIR For definitions see Chapter 75

-60 ENGINE CONTROLS For definitions see Chapter 76

-70 INDICATING For definitions see Chapter 77

-80 EXHAUST For definitions see Chapter 78

-90 OIL For definitions see Chapter 79

GROUP DEFINITION - STRUCTURES

51 STANDARD PRACTICES ANDSTRUCTURES - GENERAL

GENERAL Standard Practices General Procedures and typicalrepairs applicable to more than one chapter and are not specificallycovered under Chapters 52 thru 57 Sub-Sys Sect breakdown

-00 GENERAL Airplane major structural breakdown diagram Primary andsecondary structure diagram Principal area and dimensional dataRestricted area diagram Zoning diagram Access door and panelidentification Glossary

-10 INVESTIGATION CLEANUP ANDAERODYNAMIC SMOOTHNESS

Definition of damage classifications Cleanup of dents cracksscratches corrosion etc Aerodynamic smoothness requirementsfor the airplane and permissible contour variations gaps andmismatch data

-20 PROCESSES Special processes for use in the repair of the airplane Will notinclude general engineering practices unless specific deviations arerequired Unique processes such as welding specifications etcrelative to a single repair shall be incorporated in the repair and onlyreferenced here

-30 MATERIALS Description of materials (metallic and non-metallic) includingextrusions formed sections sheet sealants adhesives andspecial materials used in airplane repair Where possiblepermissible substitutes and sources of supply will be given

-40 FASTENERS Description of fastener types materials and sizes Procedures forfastener installation and removal including hole preparationFastener strength values and substitution data

-50 SUPPORT OF AIRPLANE FORREPAIR AND ALIGNMENT CHECKPROCEDURES

Procedure for supporting the airplane to relieve loads during repairsIncludes locations for supports and contour dimensions for requiredground equipment



-60 CONTROL-SURFACE BALANCING Procedures for adjusting the mass balance of control surfaces afterrepair Where applicable individual repairs will contain their ownbalancing instructions

-70 REPAIRS Typical repairs suitable for general use not limited to one ATAChapter

-80 ELECTRICAL BONDING Topics concerning the electrical bonding of aircraft structure as wellas electrical bonding of subsystems to aircraft structure

52 DOORS Removable units used for entrance or exit and for enclosing otherstructure contained within the fuselage Includes passenger andcrew doors cargo doors emergency exits etc Electrical andhydraulic systems associated with door control are included asappropriate

-00 GENERAL

-10 PASSENGER CREW Doors used for entrance and exit of the passengers and crew toand from the aircraft Includes items such as structure latchingmechanisms handles insulation lining controls integral stepsramps handrails attachattached fittings etc

-20 EMERGENCY EXIT Exit doors used to facilitate evacuation that are not normally usedfor exit Includes items such as structure latching mechanismshandles insulation lining controls attach attached fittings etc

-30 CARGO Exterior doors used primarily to gain access to cargocompartments Includes items such as structure latchingmechanisms handles insulation lining controls integral stepsramps handrails attachattached fittings etc

-40 SERVICE Exterior doors used primarily to gain access for servicing aircraftsystems and equipment Includes items such as structure latchingmechanisms handles insulation lining controls integral stepshandrails attachattached fittings etc

-50 FIXED INTERIOR Interior Doors inside the fuselage installed in fixed partitionsIncludes items such as structure latching mechanisms handleslining attachattached fittings etc Does not include doors installedin movable partitions which are covered in Chapter 25

-60 ENTRANCE STAIRS Stairs which operate in conjunction with but are not an integral partof entrance doors Stairs whose primary structure is a door shall becovered under the appropriate topic Includes items such asstructure actuating mechanisms and controls handrailsattachattached fittings etc

-70 DOOR WARNING That portion of the system which is used to indicate whether thedoors are closed and properly latched Includes items such asswitches lights bells horns etc Does not include landing geardoor warning which is covered in Chapter 32

-80 LANDING GEAR Structure of the doors used to enclose the landing gearcompartments Includes items such as structure latchingmechanisms handles insulation lining controls attachattachedfittings etc

53 FUSELAGE Structural units and associated components and members whichmake up the compartments for equipment passengers crewcargo plus the structure of the envelope and gondola of airshipsIncludes skins belt frames stringers floor beams floor pressuredome scuppers tail cone fuselage -to-wing and -empennagefillets attachattached fittings load curtains cables ballonets etc

-00 GENERAL

-10 MAIN FRAME Fuselage Sections Skins main structure secondary structure andfairings of the complete fuselage with any structural differencesgrouped together and highlighted by fuselage section location Thesection locations shall be defined by manufacturing joints or othersuitable demarcations in sequence from front to rear Does notinclude movable partitions covered in Chapter 25 nor the functionaland maintenance aspects of variable aerodynamic fairings coveredin Chapter 27

-20 AUXILIARY STRUCTURE

-30 PLATES-SKIN

-40 ATTACH FITTINGS

-50 AERODYNAMIC FAIRINGS

-60 [AS REQUIRED]

-70 [AS REQUIRED]

-80 [AS REQUIRED]

-90 [AS REQUIRED]

54 NACELLES PYLONS Structural units and associated components and members whichfurnish a means of mounting and housing the power plant or rotorassembly Includes skins longerons belt frames stringersclamshells scuppers doors nacelle fillets attachattached fittingsetc Also includes the structure of power plant cowling inclusive of



the structural portion of the inlet whether or not integral with theaircraft Structural portions of the exhaust system are excludedwhere they are not integral with the airframe

-00 GENERAL

-10 [AS REQUIRED] Nacelle Section Skins primary structure secondary structurefillets and fairings of a complete nacelle with any structuraldifferences grouped together and highlighted by specific nacelledesignator The section locations shall be defined by manufacturingjoints or other suitable demarcations in a logical sequence

-20 [AS REQUIRED]

-30 [AS REQUIRED]

-40 [AS REQUIRED]

-50 [AS REQUIRED] Pylon Section Skins primary structure secondary structure filletsand fairings of a complete pylon with any structural differencesgrouped together and highlighted by specific pylon designator Thesection locations shall be defined by manufacturing joints or othersuitable demarcations in a logical sequence

-60 [AS REQUIRED]

-70 [AS REQUIRED]

-80 [AS REQUIRED]

-90 [AS REQUIRED]

55 STABILIZERS Horizontal and vertical stabilizers include the structure of theelevator and rudder

-00 GENERAL

-10 HORIZONTAL STABILIZER STABILATOR OR CANARD

The horizontal airfoil of the tail or nose section to which the elevatoris attached Includes items such as spars ribs stringers skinsaccess covers tips attach attached fittings etc

-20 ELEVATOR - ELEVON Removable airfoil which is attached to the horizontal stabilizer orcanard and used for pitch control Includes items such as sparsribs stringers skins access covers tabs balance devices attachattached fittings etc

-30 VERTICAL STABILIZER Vertical airfoil to which the rudder is attached Includes items suchas spars ribs stringers skins access covers tipsattachattached fittings etc

-40 RUDDER - RUDDEVATOR Removable airfoil which is attached to the vertical stabilizer andused for yaw control Includes items such as spars ribs stringersskins access covers tabs balance devices attachattachedfittings etc

56 WINDOWS Fuselage and crew compartment windows inclusive of windshieldalso those windows installed in doors

-00 GENERAL

-10 FLIGHT COMPARTMENT Compartment above the floor and between the forward passengerpartition and the forward pressure dome Includes items such asthe transparent material and its frame of sliding and fixed windowsand windshields handles latching mechanisms etc Does notinclude door or inspectionobservation windows

-20 PASSENGER COMPARTMENT Area in which the passengers are seated Includes loungeslavatories buffets galleys and coatrooms Includes items such astransparent material its frame frost shield etc

-30 DOOR Doors used for entrance and exit of the passengers flight crew andservice personnel to and from the airplane Includes items such astransparent material its frame etc Does not include emergencyexit windows

-40 INSPECTION AND OBSERVATION Windows used for examining compartments and equipment in andabout the airplane and astrodomes used for celestial navigationIncludes items such as transparent material its frame etc

57 WINGS Center wing and outer wing structural units and associatedcomponents and members which support the aircraft in flightIncludes spars skin ribs stringers clamshells scuppers etcand integral fuel tank structure of the flaps slats ailerons orelevons (complete with tabs) spoilers and wing folding system

-00 GENERAL

-10 CENTER Wing Skins primary structure fillets and fairings of the centerwing and attach attached fittings

-20 OUTER Wing Skins primary structure fillets and fairings of the outer wingand attach attached fittings

-30 WING TIP Skins and structure of the wing tip and attached fittings

-40 LEADING EDGE AND LEADING EDGEDEVICES

Skins and structure of the wing leading edge and removable leadingedge airfoils such as flaps slats attachattached fittings etc

-50 TRAILING EDGE AND TRAILINGEDGE DEVICES

Trailing Edge Devices Skins and structure of the wing and trailingedge and removable edge airfoils such as flaps and attachattached



fittings

-60 AILERONS AND ELEVONS Skins and structure of wing-mounted spoilers airbrakes liftdumpers attachattached fittings etc

-70 SPOILERS Skins and structure of wing-mounted spoilers airbrakes liftdumpers attachattached fittings etc

-80 [AS REQUIRED]

-90 WING FOLDING SYSTEM System that controls the on-ground movement of any portion of themain wing structure Includes mechanisms linkages actuatorslocks indicatingwarning systems etc

GROUP DEFINITION PROPELLER ROTORComplete propeller rotor system excluding propeller rotor anti-icing system

60 STANDARD PRACTICES -PROPELLER ROTOR

61 PROPELLERS PROPULSORS The complete mechanical or electrical propeller pumps motorsgovernor alternators and those units and components external toor integral with the engine used to control the propeller blade angleIncludes propeller spinner synchronizers Also includes propulsorduct assemblies including aerodynamic fairing of mechanicalcomponents stators vectoring systems etc

-00 GENERAL

-10 PROPELLER ASSEMBLY That portion of the system which rotates except the enginepropeller shaft Includes items such as blades dome hub spinnerslip ring deicer boot distributor valve etc

-20 CONTROLLING That portion of the system which controls the pitch of the propellerblades Includes items such as governor synchronizers switcheswiring cables levers etc Does not include any parts which rotatewith the propeller assembly Also includes all those units andcomponents provided for the propulsor vector drive system Includesflight deck control drive motors gearboxes drive shaftssynchronizing shafts etc

-30 BRAKING That portion of the system which is used to decrease run -downtime or stop propeller rotation during engine power -off conditionsIncludes brake mechanisms levers pulleys cables switcheswiring plumbing etc

-40 INDICATING That portion of the system used to indicate operation or activationof propellerpropulsor systems Includes items such as lightswitches wiring etc

-50 PROPULSOR DUCT The complete duct assembly including vector drive attachmentfairings stators gearbox covers etc

62 MAIN ROTOR(S) Rotor head assembly(ies) and rotor blades including theswashplate assembly(ies) and the rotor shaft unit(s) if not anintegral part of the gear box(es) Does not include the rotor anti-icing system which is dealt with in chapter 30 Ice and RainProtection

-00 GENERAL

-10 ROTOR BLADES Rotor blade assemblies including the heating mate (electricalresistors) for anti -icing

-20 ROTOR HEAD(S) Complete rotor head(s) including blade folding system(s) Includessleeves spindles dampers rotor head fairing(s) as well as rotorshaft(s) and swashplate(s) if the rotor head and shaft constitute anon-dissociable assembly

-30 ROTOR SHAFT(S) SWASHPLATEASSEMBLY(IES)

Rotor shaft(s) swashplate assembly(ies) not included in -20

-40 INDICATING That portion of the system which indicates operation or activation ofrotor systems Includes items such as lights gauges switcheswiring etc

63 MAIN ROTOR DRIVE(S) Includes all components transmitting power to the rotor(s) enginecoupling components drive shaft(s) clutch and free wheel unitsgear box(es) its (their) components systems and securingelements

-00 GENERAL

-10 ENGINE GEARBOX COUPLINGS Drive shaft(s) between engine(s) and main gear box(es) and if



applicable clutch and free wheel unit(s)

-20 GEARBOX(ES) Part of the system driving the rotor(s) Includes the mechanicalpower take -off(s) and accessory drives but does not include theaccessories themselves (alternators hydraulic pumps etc)Includes the GB lubricating system(s) and the rotor brake(s) if thelatter form(s) part of the GB(s)

-30 MOUNTS ATTACHMENTS Suspension bars vibration damping system providing attachment ofthe GB(s) to the airframe


64 TAIL ROTOR Assembly that rotates in a plane nearly parallel to the symmetryplane and delivers a thrust opposing to the main rotor torque thusensuring yaw control Includes the rotor blades and rotor headDoes not include the rotor anti-icing system which is dealt with inchapter 30 Protection against ice and rain

-00 GENERAL

-10 ROTOR BLADES Blade assemblies including heating mats (electrical resistors) foranti-icing For an integral rotor bladerotor head unit only onesection will be used

-20 ROTOR HEAD Tail rotor head For an integral rotor bladerotor head unit only onesection will be used

-30 [AVAILABLE]

-40 INDICATING That portion of the system which indicates operation or activation ofrotor systems Includes items such as lights gauges switcheswiring etc Note For an integral unit only one section will be used

65 TAIL ROTOR DRIVE Includes all the components transmitting power to the tail rotordrive shafts bearings gearboxes

-00 GENERAL

-10 SHAFTS Drive shafts bearings flexible couplings

-20 GEARBOXES Intermediate gearbox Tail gearbox

-30 [AVAILABLE]


66 ROTOR BLADE AND TAIL PYLONFOLDING

The whole of the system ensuring automatic or manual folding andspreading of the rotor blades andor tail pylon NOTE such riggingalso affects the components described in other chapters

-00 GENERAL

-10 ROTOR BLADES Part of the system ensuring rotor blade folding and spreadingincludes the mechanical hydraulic and electrical meanspermanently fitted on the aircraft

-20 TAIL PYLON Part of system ensuring tail pylon folding and spreading includesmechanical hydraulic and electrical means permanently fitted onthe aircraft

-30 CONTROLS AND INDICATING Part of the system intended for controlling foldingspreadingsequences and for indicating the system operation Includes thecontrol units caption lights indicators wiring etc

67 ROTORS FLIGHT CONTROL The system which provides means of manually controlling the flightattitude of the helicopter Includes items such as control linkageand control cables for collective pitch cyclic pitch directionalcontrol servo-controls and corresponding system The trim systemand the indicating and monitoring system NOTE this chapterincludes the complete rigging of rotor control including theassociated items not described under this system such as auto -pilot servo -control unit automatic trim (Ch 22) blade pitchchange rod (Ch 63) swashplate

-00 GENERAL

-10 ROTOR CONTROL That portion of the system which controls the attitude by the angleof attack of the rotor blades Includes items such as collective pitchlever cyclic pitch stick and corresponding linkage and cablecontrols coupling and mixing units and artificial feel unit systemAlso includes the control position indicating system



-20 ANTI-TORQUE ROTOR CONTROL(YAW CONTROL)

That portion of the controls which control the direction of thehelicopter (yaw control) Includes items such as tail rotor controlpedals relevant linkage and cable controls bellcranks constitutingthe yaw control channel and the control position indicating system

-30 SERVO-CONTROL SYSTEM That portion of the system which from a power source ensuresdistribution to the rotor servo-control

GROUP DEFINITION - POWER PLANT

70 STANDARD PRACTICES - ENGINE

71 POWER PLANT - GENERAL The overall power package inclusive of engine air intake mountcowling scoops cowl flaps

-00 GENERAL This topic shall include general information limits and proceduresIn the maintenance manual this section shall cover subjects suchas engine changes run-up externally mounted spare power plantsetc In the overhaul manual this section shall cover subjects suchas power plant build-up teardown etc

-10 COWLING Those removable coverings which extend over and around the powerplant assembly Includes the functioning and maintenance aspectsof items such as accessory section cowls cowl flaps cowlingsupports and attach and locking mechanisms etc Does notinclude the structure integral with the airframe which shall becovered in the applicable Structures chapter

-20 MOUNTS The frame work either of build-up construction or forgings whichsupport the engine and attach it to the nacelle or pylon Includesitems such as engine mounts vibration dampeners support linksmounting bolts etc

-30 FIRESEALS AND SHROUDS Those fire-resistant partitions and seals mounted on or about thepower package for the purpose of isolating areas subject to fireDoes not include those fire-walls which are included in Chapter 54

-40 ATTACH FITTINGS Those fittings and brackets which are used for the support ofequipment in and about the power package

-50 ELECTRICAL HARNESS Those electrical cables conduits plugs sockets etc which serveseveral power plant systems but which are banded together tofacilitate removal and installation of the power plant Does notinclude the wiring which is specifically covered under anothersystem

-60 ENGINE AIR INTAKES That portion of the power plant system which directs and may ormay not vary the mass air flow to the engine Includes items suchas nose ring cowls scoops compressor fan cowls buried engineducts vortex generators actuators control handles cables wiringplumbing linkages doors warning systems position indicatorsetc Does not include integral structure with the airframe whichshall be included in the applicable Structures chapter

-70 ENGINE DRAINS Those components and manifold assemblies which are used todrain off excess fluids from the power plant and its accessoriesIncludes drainlines manifolds tanks flame arrestors vents andtheir supporting brackets etc Also includes components that arean integral part of or fitted to the power plant cowling

72 ENGINE Those units and components which are used to induce and convertfuel-air mixture into power Includes for the turbine engine air inletcompessor diffuser combustion chambers turbine and exhaustand for the reciprocating engine blower and clutch clutch controlvalve cylinder cylinder baffles intake pipes crankshaft assemblyetc

Used to transmit power to the propeller shaft if any and accessorydrives Includes reduction gearing gear trains extension shaft andtorque meter

Within the profile of the basic engine used to supplement thefunctioning of other defined systems external to the engineIncludes items such as accessory drive mechanical portion of thespark advance mechanism oil transfer tubes from the propellergovernor pad to the propeller shaft BMEP section etc

Used to control and direct the flow of lubrication through the enginefrom the inlet fitting to the outlet fitting Includes engine pumps(pressure and scavenger) pressure relief valves screens oil lines(internal and external) etc



72(T) ENGINE - TURBINE TURBOPROPDUCTED FAN UNDUCTED FAN

-00 GENERAL This topic is intended to cover general information limits andprocedures In the engine overhaul manual this section wouldinclude such subjects as tear down cleaning inspectionassembly testing etc

-10 REDUCTION GEAR AND SHAFTSECTION (TURBOPROP ANDORFRONT MOUNTED DRIVENPROPULSOR)

The section of the engine which contains the propeller shafts andreduction gears Includes items such as drives for hose mountedaccessories etc If applicable the section of the engine whichuses mechanical force through a gear-driven system to drive frontmounted propulsors which provide the majority of the energygenerated Includes items such as Propulsor Blades Actuationsystems Reduction Gears Drive-Shafts etc

-20 AIR INLET SECTION The section of the engine through which air enters the compressorsection Includes items such as guide vanes shrouds cases etc

-30 COMPRESSOR SECTION The section of the engine in which the air is compressed Includesitems such as cases vanes shrouds rotors diffusers etc Alsoincludes the maintenance and overhaul of stator blades but not theoperation of variable stator blades which is covered under Chapter75 - 30 Does not include compressor bleed section

-40 COMBUSTION SECTION The section of the engine in which the air and fuel are combinedand burned Includes items such as burner cans cases etc

-50 TURBINE SECTION The section of the engine containing the turbines Includes itemssuch as turbine nozzles turbine rotors cases etc

-60 ACCESSORY DRIVES The mechanical power take-offs to drive accessories Includesitems such as engine-mounted gear boxes gears seals pumpsetc Does not include remotely installed gear boxes which arecovered in Chapter 83

-70 BY-PASS SECTION The section of the engine which by-passes a portion of the normalengine airflow (either ram or compressed air) for the prime purposeadding to engine trust of reducing specific fuel consumption

-80 PROPULSOR SECTION (REARMOUNTED)

The section of the engine which contains a propulsor(s) andprovides the majority of the energy generated The propulsor maybe turbine-driven or gear-driven Includes such items as propulsorturbines propulsor blades blade actuation and frames (rotatingandor stationary)

72(R) ENGINE - RECIPROCATING


-10 FRONT SECTION The section of the engine which contains the propeller shafts andreduction gears Includes items such as drives for nose mountedaccessories

-20 POWER SECTION The section of the engine which contains the crankshaft masterand link rod assemblies cams cam drives gears tappet guidesroller carriers etc

-30 CYLINDER SECTION The section of the engine which contains the cylinders valvespistons push rods intake pipes baffles etc Also includes rockerarm assembly valve springs etc

-40 SUPERCHARGER SECTION The section of the engine which contains the cases shroud platesPRT coupling and gearing impeller and drives accessory drivesbushings etc

-50 LUBRICATION Those units and components which are used to distribute oilthroughout the engine Includes front and rear pressure andscavenger pumps sumps strainers valves etc Also includesthose oil lines not included in chapter 79 Does not include thoseitems which form integral passages within the engine

73 ENGINE - FUEL AND CONTROL For turbine engines those units and components and associatedmechanical systems or electrical circuits which furnish or controlfuel to the engine beyond the main fuel quick disconnect and trustaugmentor fuel flow rate sensing transmitting andor indicatingunits whether the units are before or beyond the quick disconnect

Includes coordinator of equivalent engine driven fuel pump and filterassembly main and thrust augmentor fuel controls electronictemperature datum control temerature datum valve fuel manifoldfuel nozzles fuel enrichment system speed sensitivity switchrelay box assembly solenoid drip valve etc

For reciprocating engines those units and components which



deliver metered fuel and air to the engine The fuel portion includesthe carburetormaster control from the inlet sideto the dischargenozzle(s) injection pumps carburetor injection nozzles and fuelprimer The air portion includes units from the scoop inlet to thevapor return and impeller chamber

-00 GENERAL

-10 DISTRIBUTION That portion of the system from the main quick disconnect to theengine which distributes fuel to the engine burner section and thethrust augmentor Includes items such as plumbing pumpstemperature regulator valves filters manifold nozzles etc Doesnot include main of thrust augmentor control

-20 CONTROLLING - GOVERNING The main fuel control which meters fuel to the engine and the thrustaugmentor Includes items such as hydro-mechanical or electronicfuel control levers actuators cables pulleys linkages sensorsvalves etc which are components of the fuel control units

-30 INDICATING That portion of the system which is used to indicate the flow ratetemperature and pressure of the fuel Includes items such astransmitters indicators wiring etc Does not include indication ifindication is accomplished as part of an integrated engineinstrument system (ref 77-40)

74 IGNITION Those units and components which generate control furnish ordistribute an electrical current to ignite the fuel air mixture in thecylinders of reciprocating engines or in the combustion chambersor thrust augmentor of turbine engines Includes induction vibratorsmagnetos switches lead filters distributors harnesses plugsignition relays exciters and the electrical portion of spark advance

-00 GENERAL

-10 ELECTRICAL POWER SUPPLY That portion of the system which generates electrical current for thepurpose of igniting the fuel mixture in the combustion chambersand thrust augmentors Includes items such as magnetosdistributors booster coils exciters transformers storagecapacitors and compositors etc

-20 DISTRIBUTION That portion of the system that conducts high or low voltageelectricity from the electrical power supply to the spark plugs origniters Includes wiring between magneto and distributors in thosesystems where they are separate units Includes items such asignition harness high tension leads coils used in low tensionsystems spark plugs igniters etc

-30 SWITCHING That portion of the system which provides a means of rendering theelectrical power supply inoperative Includes items such as ignitionswitches wiring connectors etc

75 BLEED AIR For turbine engines those external units and components andintegral basic engine parts which go together to conduct air to theextension shaft and torquemeter assembly if any Includescompressor bleed systems used to control flow of air through theengine cooling air systems and heated air systems for engine anti-icing Does not include aircraft anti-icing engine starting systemsnor exhaust supplementary air systems

-00 GENERAL

-10 ENGINE ANTI-ICING That portion of the system which is used to eliminate and preventthe formation of ice by bleed air in al parts of the engine excludingpower plant cowling which is covered by Chapter 30 Includes itemssuch as valves plumbing wiring regulators etc Electrical anti-icing is covered in Chapter 30

-20 ENGINE COOLING That portion of the system which is used to ventilate the engine andaccessories Includes items such as valves plumbing wiring jetpumps vortex spoilers etc

-30 COMPRESSOR CONTROL That portion of the system which is used to control the flow of airthrough the engine Includes items such as governors valvesactuators linkages etc Also includes the operation of variablestator blades but not the maintenance and overhaul which shall becovered under 72-30

-40 INDICATING That portion of the system which is used to indicate temperaturepressure control positions etc of the air systems Includes itemssuch as transmitters indicators wiring etc

76 ENGINE CONTROLS Those controls which govern operation of the engine Includes unitsand components which are interconnected for emergencyshutdown For turbo-prop engines includes linkages and controlsto the coordinator or equivalent to the propeller governor fuel control



unit or other units being controlled For reciprocating engineinclude controls for blowers Does not include units or componentswhich are specifically included in other chapters

-00 GENERAL

-10 POWER CONTROL That portion of the system which furnishes a means of controllingthe main fuel control or coordinator Includes controls to thepropeller regulator on turbo-prop engines Includes items such aslinkages cables levers pulleys switches wiring etc does notinclude the units themselves

-20 EMERGENCY SHUTDOWN That portion of the system which furnishes a means of controllingthe flow of fluids to and from the engine during emergencyprocedures Includes items such as levers cables pulleyslinkages switches wiring etc Does not include the unitsthemselves

77 ENGINE INDICATING Those units components and associated systems which indicateengine operation Includes indicators transmitters analyzers etcFor turbo-prop engines includes phase detectors Does not includesystems or items which are included in other chapters except whenindication is accomplished as part of an integrated engineinstrument system (ref 77-40)

-00 GENERAL

-10 POWER That portion of the system which directly or indirectly indicatespower or thrust Includes items such as BMEP pressure-ratioRPM etc

-20 TEMPERATURE That portion of the system which indicates temperatures in theengine Includes items such as cylinder head exhaust (turbineinlet) etc

-30 ANALYZERS That portion of the system which is used to analyze engineperformance or condition by means of instruments or devices suchas oscilloscopes etc Includes items such as generators wiringamplifiers oscilloscopes etc

-40 INTEGRATED ENGINE INSTRUMENTSYSTEMS

That portion of the system which as an integrated concept receivesseveralall engine operating parameters and transmits this to acentral processor for crew presentation Includes items such asdisplay units transmitters receivers computers etc

78 EXHAUST Those units and components which direct the engine exhaustgases overboard For turbine engines includes units external to thebasic engine such as thrust reverser and noise suppressor Forreciprocating engines includes augmentors stacks clamps etcExcludes exhaust-driven turbines

-00 GENERAL

-10 COLLECTOR - NOZZLE That portion of the system which collects the exhaust gases fromthe cylinders or turbines and conducts them overboard Includesitems such as collector rings exhaust and thrust augmentor ductsvariable nozzles actuators plumbing linkages wiring positionindicators warning systems etc Does not include power recoveryturbines turbo-superchargers etc nor noise suppressors or thrustreversers where they are not an integral part of the nozzle system

-20 NOISE SUPPRESSOR That portion of the system which reduces the noise generated bythe exhaust gases Includes items such as pipes baffles shieldsactuators plumbing linkages wiring position indicators warningsystems etc Use -10 where integral part of nozzle system

-30 THRUST REVERSER That portion of the system which is used to change the direction ofthe exhast gases for reverse thrust Includes items such asclamshells linkages levers actuator plumbing wiring indicatorswarning systems etc Use -10 where integral part of nozzlesystem

-40 SUPPLEMENTAL AIR That portion of the system which varies and controls supplementaryair flow of the exhaust system Includes items such as tertiarydoors actuators linkages springs plumbing wiring positionindicators warning systems etc

79 OIL Those units and components external to the engine concerned withstoring and delivering lubricating oil to and from the engine Coversall units and components from the lubricating oil engine outlet tothe inlet including the inlet and outlet fittings tank radiator by-pass valve etc and auxiliary oil systems

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-10 STORAGE (DRY SUMP) That portion of the system used for storage of oil Includes items



such as tanks filling systems internal hoppers baffles tank sumpand drain etc Does not include tanks which are an integral portionof the engine

-20 DISTRIBUTION That portion of the system which is used to conduct oil to and fromthe engine Includes items such as plumbing valves temperatureregulator control systems etc

-30 INDICATING That portion of the system which is used to indicate oil quantitytemperature and pressure of the oil Includes items such astransmitters indicators wiring warning systems etc Does notinclude indication if indication is accomplished as part of anintegrated engine instrument system (ref 77-40)

80 STARTING Those units components and associated systems used for startingthe engine Includes electrical inertial air or other starter systemsDoes not include ignition systems which are covered in chapter 74IGNITION

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-10 CRANKING That portion of the system which is used to perform the crankingportion of the starting operation Includes items such as plumbingvalves wiring starters switches relays etc

81 TURBINES (RECIPROCATINGENGINES)

For reciprocating engines only Includes power recovery turbineassembly and turbo-supercharger unit when external to the engine

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-10 POWER RECOVERY The turbines which extract energy from the exhaust gases and arecoupled to the crankshaft

-20 TURBO-SUPERCHARGER The turbines which extract energy from the exhaust gases and drivean air compressor

82 WATER INJECTION Those units and components which furnish meter and inject wateror water mixtures into the induction system includes tankspumps regulators etc

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-10 STORAGE That portion of the system which is used to for the storage of wateror water mixtures Includes tank sealing attachment of bladdertype cells ventilating system cell and tank interconnects fillingsystems etc

-20 DISTRUBUTION That portion of the system which is used to conduct water or watermixtures from the tanks or cells to the engine Includes items suchas plumbing crossfeed systems pumps valves controls etc

-30 DUMPING AND PURGING That portion of the system which is used to dump injection waterand to purge the system Includes items such as plumbing valvescontrols etc

-40 INDICATING That portion of the system which is used to indicate the quantitytemperature and pressure of the water mixtures Includes itemssuch as transmitters indicators wiring etc

83 ACCESSORY GEAR BOXES (ENGINEDRIVEN)

Those units and components which are remotely installed andconnected to the engine by a drive shaft and which drive multipletype of accessories Does not include those accessory driveswhich are bolted to and are immediately adjacent to the engineThe latter item shall be covered under Chapter 72 ENGINE

-00 GENERAL

-10 DRIVE SHAFT SECTION That portion of the system which is used to conduct power from theengine to the gearbox Includes items such as drive shaftadapters seals etc

-20 GEAR BOX SECTION The case which contains the gear trains and shafts Includes itemssuch as gears shafts seals oil pumps coolers etc

84 PROPULSION AUGMENTATION Those units and components that independent of the primarypropulsion system furnish additional thrust of short durationIncludes solid or liquid propellants controls indicator etc

-00 GENERAL

-10 JET ASSISTED TAKEOFF Those units or components dedicated to jet assisted takeoff (JATO)systems



91 CHARTS Miscellaneous charts not applicable to any particular system suchas spare wire charts junction box charts disconnect plug chartsconduit and wire routing charts rigid tube charts flexible hosecharts and control cables

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149 AZALEA CIRCLE bull LIMERICK PA 19468-1330 610-495-6898 (Office) bull 484-680-0507 (Cell) E-mail S-Tech

Last revised January 1 2005



74 IGNITION75 BLEED AIR76 ENGINE CONTROLS77 ENGINE INDICATING78 EXHAUST79 OIL80 STARTING81 TURBINES (RECIPROCATING ENGINES)82 WATER INJECTION83 ACCESSORY GEAR BOXES (ENGINE DRIVEN)84 PROPULSION AUGMENTATION91 CHARTS

ATA DEFINITIONS OF AIRCRAFT GROUPS SYSTEMS AND SUB-SYSTEMS

CHAP SEC TITLE DESCRIPTION

GROUP DEFINITION mdash AIRCRAFT The complete operational unit Includes dimensions and areaslifting and shoring leveling and weighing towing and taxiingparking and mooring required placards servicing

01 INTRODUCTION

01 OPERATIONS INFORMATION

05 PERIODIC INSPECTIONS Manufacturers recommended time limits for inspectionsmaintenance checks and inspections (both scheduled andunscheduled)

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-10 TIME LIMITS Those manufacturer recommended time limits for inspectionsmaintenance and overhaul of the aircraft its systems and unitsand life of parts For engine manufacturers this will include the flightcycle lives of major rotating components and other itemsdesignated critical

-20 SCHEDULED MAINTENANCECHECKS

Those manufacturer recommended maintenance checks andinspections of the aircraft its systems and units dictated by thetime limits specified in -10 above This section shall list in moredetail the items which are outlined on the airline job forms (usuallyby title only) and shall cross -reference the detailed proceduresincluded in the individual Maintenance Practices

-30 [AS REQUIRED] Reserved for use in those cases where the number of breakoutsprovided by the fourth digit of the -20 breakout is not sufficient tocover all of the maintenance checks dictated by subsystem -10above NOTE Inclusion of the data described in -10 through -40above in any manual or manual publication is specificallyprohibited unless required by government regulation Airlines desirethe manufacturers recommended time limits and scheduledmaintenance checks but these should be provided in a separatedocument

-40

-50 UNSCHEDULED MAINTENANCECHECKS

Those maintenance checks and inspections on the aircraft itssystems and units which are dictated by special or unusualconditions which are not related to the time limits specified in -10above Includes inspections and checks such as hard landingoverweight landing bird strike turbulent air lightning strike slushingestion radioactive contamination maintenance checks prior toengine-out ferry etc

06 DIMENSIONS AND AREAS Those charts diagrams and text which show the areadimensions stations access doors zoning and physicallocations of the major structural members of the aircraft Includesan explanation of the system of zoning and measurement used

07 LIFTING AND SHORING This chapter shall include the necessary procedures to lift andshore aircraft in any of the conditions to which it may be subjected




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Date post:	29-Dec-2015
Category:	Documents
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