Airworthiness Advisory Circular (AAC) Administration … of the SoM/AMM for testing of the...

Part 9-95 Issue 23 – March 2011 Administration and Procedure – Aircraft Maintenance Page 1 of 22

Engineer Licences – Category Instruments

Airworthiness Advisory Circular (AAC)

Administration and Procedure – Aircraft

Maintenance Engineer Licences – Category

Instruments

AAC Number Part 9-95

Issue Number Twenty Three

Date Amendment March 2011

This AAC contains information on the following topics applicable

to Aircraft Maintenance Engineer Licences –

Category Instruments:

1. Applicability

2. Definitions

3. Grouping Classifications

4. Licence Ratings and Form of Endorsement

5. Experience Requirements for the Grant of a Licence or Endorsement of a Rating

6. Examination Requirements

1. Applicability

This AAC specifies the requirements for the grant of an Aircraft Maintenance Engineer

Licence and the endorsement of additional ratings to a licence in the Instrument category.

It is to be read in conjunction with CAO Section 100.90 Issue 3 and the corresponding sub-

sections of CAO Section 100.95 Issue 4.


Administration and Procedure – Aircraft Maintenance Engineer

Licences – Category Instruments

Part 9-95, Issue 23 – March 2011 Administration and Procedure – Aircraft Maintenance Page 2 of 22


2. Definitions

Inertial navigation and reference systems (covered by Instrument Group 9 rating [CASA

basic IK is required as a pre-requisite]) are those inertial navigation systems that initially

measure the six degrees of freedom. The six degrees of freedom measured are linear position

(x, y, z) and rotational attitude (pitch, yaw and roll). The CASA basic IK and Group 9 rating

are not required for licence coverage for Aircraft Heading and Reference Systems that may

well have inertial accelerometers but cannot be described as measuring the six degrees of

freedom. AHRS systems typically have rate gyros, magnetic compass or GPS inputs feeding

into a computer which calculates heading for display. AHRS systems are typically provided

licence coverage by the CASA Instrument Categories Aircraft General Instruments (Group

1) and Remote Indicating Compass Systems (Group 8). The same logic applies to Instrument

Group 20 aircraft, which may or may not have an inertial navigation and reference system

installed.

GPWS & TAWS Maintenance Privileges

Changes in terminology and advances to technology have caused questions to arise regarding

maintenance privileges for GPWS. Enhanced GPWS is a trademark owned by Honeywell -

but through general usage the term became synonymous with all of the Terrain Awareness

and Warning Systems (TAWS) that were available. TAWS is the standard terminology to be

used when describing GPWS systems with forward looking and predictive capabilities. The

table below provides some useful comparisons between the different systems available.

TAWS/GPWS Comparison

MODES/FUNCTIONS

TSO C92

GPWS

TSO C151 Class A TAWS

TSO C151 Class B TAWS

GPWS TAWS

Mode 1 Excessive Rate of Descent

Note 2

Mode 2 Excessive Closure Rate to

Terrain

Mode 3 Negative Climb Rate or

Altitude Loss After Take-Off

Note 2

Mode 4 Flight Into Terrain When

Not in Landing Configuration






Mode 5 Excessive Downward Deviation From an ILS

Glide Slope

Forward Looking Terrain

Avoidance Function

Premature Decent Alert

Function

Terrain Awareness

Display

Note 5

Voice Callout 'Five Hundred'

Note 3

Note 4

Notes:

1. The Federal Aviation Administration currently requires that TSO C151 Class B

equipments be limited to aeroplanes with nine passenger seats or less (TSO C-151 Appendix

1 Table 11-1). CAO 20.18 does not require an aeroplane with less than ten seats to carry

GPWS.

2. Class B equipment will not require a radio altimeter. Height above terrain may be

determined by subtracting the elevation of the current position terrain cell from the current

barometric altitude (or equivalent).

3. When the aeroplane descends to 500 ft above the terrain or nearest runway elevation.

4. When the aeroplane descends to 500 ft above the nearest runway elevation.

5. Class B must be capable of driving an optional display.

Composite Indicators Maintenance Privileges

A question that often arises is due to the fact that some GPWS and TAWS have composite

indicators. A 'composite indicator' (defined in CAO 100.90 as; ’an indicator which receives,

processes and/or displays information to and from both instrument and radio systems’.) is

prime category for both category Radio (section 4.1 of appendix 1 to CAO 100.90) and

category Instruments (section 6.1 of appendix 1 to CAO 100.90).

This means is that either category can maintain the indicator - but it would depend on the

nature of the maintenance who should in any particular situation. If the indicator is to be

replaced due to failure of a radio system display - then category radio; failure of an

instrument system display - then category instruments, for total failure, either category.

Subsequent release-to-service may be certified by the category of LAME who can meet the

requirements of the SoM/AMM for testing of the indicator. If other systems are needed to be






operated to perform the composite indicator test, then it may be both categories depending on

those related system requirements. On the other hand, if the test can be done by only one

category, then that category. The instrument category GPWS and TAWS maintenance

privileges do not extend to the radio inputs.

Terrain Awareness Warning System (TAWS) Maintenance Privileges.

The two common categories of TAWS are Class A and Class B. Class A TAWS is the

enhanced version of GPWS and always has a display. Class B TAWS has less modes and

functions than GPWS/Class A TAWS eg it is not fed any radar altimeter inputs and may or

may not have a display.

Class A & B TAWS are thus treated like any GPWS and are primarily an instrument

category system. The radio category has maintenance privileges for the radio inputs and

composite indicators as explained above. Radio inputs and thus radio category privileges can

extend to circuit cards with a radio category function.

TAWS B systems all have the capability to feed into an instrument for display or warning

purposes. If the display/warning capability is utilised the system is termed to be a TAWS-B+

system as per CAO 20.18. If the TAWS B+ system feeds a composite indicator then both the

radio and instrument categories have maintenance privileges as explained above.

Database Maintenance Privileges

The database for a TAWS may exclusively reside within the TAWS or it may be resident

within an affiliated/interconnected system.

If the database were to be housed within the TAWS eg Honeywell EGPWS then the update

of that database would be primarily an instrument category privilege.

If the database utilised by a TAWS was that of an interconnected instrument system eg a

FMS then the update of the database would be primarily an instrument category privilege.

If the database utilised by a TAWS was that of an interconnected radio system eg a GPS then

the update of he database would be primarily a radio category privilege.

Further definitions are contained within CAO 100.95 sub-section 2.

3. Grouping Classifications

Instruments category groups are specified in CAO Section 100 95 Issue 4.

Reference should be made to Table 1 of sub-section 4 of this AAC which lists those aircraft

classified Instruments Group 20.






4. Licence Ratings and Form of Endorsement

Endorsements of ratings will take the forms as listed in CAO 100.95 Issue 4 para 4.5. Where

a credit for Examination QE is not held the licence shall be endorsed; “ratings held within

this category are limited to non-digital systems only”.

Those aircraft classified as Group 20 are listed in Table 1 below. Endorsements on the

licence are computer generated from tables maintained centrally by Maintenance Personnel

Section. The endorsements will follow as closely as possible the endorsements shown

below.

Form of Licence Endorsement for Aircraft Classified as Category Instruments -

Group 20 - Table 1

AIRCRAFT TYPE LICENCE ENDORSEMENT

Aerospatiale SA330 SA330

Aerospatiale SA332 SA332

Airbus A300 B4 - 200 A300-B4

Airbus A300 B4 - 600/Airbus A310 A300-600/310

Airbus A319/A320/A321 A319/320/321

Airbus A330-200/300 A330-200/300

Airbus A380 A380

AMD Falcon 10/20 AMD F10/20

AMD Falcon 50 AMD F50

AMD Falcon 200 AMD F200

AMD Falcon 900 (excluding 900EX) AMD F900

AMD Falcon 900EX (Note 3) AMD F900EX

ATR 42-200/300 ATR 42

ATR 42-400/500 ATR 42 PEC

Agusta Westland 139 AW139

Avro 146-RJ70/85/100 (Note 6) Avro 146-RJ

BAe HS 748 HS 748

BAe (BH/HS) 125 - 3B/400/600/700 BAe 125 Series to 700

BAe 125 800/Hawker 750/800/850/900

including XP

BAe 125-800/900

BAe 125 1000/Hawker 1000 BAe l25-l000

BAe l46 100/200/300 BAe l46 Series







Group 20 - Table 1


Beechjet 400A Beechjet 400A

Bell 2l4ST Bell 2l4ST

Boeing 707 - 300 B707-300

Boeing 717-200 B717 Series

Boeing 727 - l00/200 B727-l00/200

Boeing 737-100/200 B737-100/200

Boeing 737 - 300/400 B737-300/400

Boeing 737-600/700/700IGW/800/900 B737-600/700/800/900

Boeing 747 - l00/200/300/SP B747Series

Boeing 747-300 Life Extension B747-300 LE

Boeing 747 – 400 and –400 (910K) note 1 B747-400

Boeing 757 - 200 B757-200

Boeing 767-200/300 B767-200/300

Boeing 777-200/300 B777-200/300

Bombardier Challenger CL 300 Bombardier CL-300

Canadair/Bombardier BD-700 (Global

express)

BD-700

Canadair/Bombardier CL215 CL-215

Canadair/Bombardier CL600/601/604/605 CL600-Series

Canadair Regional Jet 100/200 Series CRJ 100/200 Series

CASA 212-400 CASA 212-400

Cessna 500/501/550/560/560XL/560XLS/S2 C500/550/560/560XL

Cessna 510 Mustang C510

Cessna 525 (SPZ5000 Instrument Suite) C525 Series (SPZ5000)

Cessna 525/525A/525B (Proline 21 Instrument

Suite )

C525 Series (Proline 21)

Cessna 650 C650

Cessna 680 C680

Cessna 750 Cessna 750

Convair 240 Convair 240







Group 20 - Table 1




Convair 580 (Allison 501) Convair 580

Dassault F 2000 and F2000EX EASy Dassault F2000

De Havilland Canada DHC-7 DHC -7

De Havilland Canada DHC-8 (Excludes 400) DHC-8-100/200/300

De Havilland Canada DHC-8-400 DHC-8-400

Dornier 328 (excluding 328-JET) Dornier 328

Eclipse 500 Eclipse 500

Eurocopter EC225 EC225

Embraer 120 EMB l20

Embraer 135/145 EMB 135/145

Embraer ERJ 170.100 STD & ERJ 170.100

LR

ERJ 170

Embraer ERJ 190.100 ERJ 190

Embraer 500 (Phenom) EMB 500

Fokker F27-MK050 (F-50; Fokker 50) F27-MK050

Fokker F27-l00/200/400/500/600/700 F27 Series

Fokker F28-l000/3000/4000 F28 Series

Fokker F28-MK100 (F-100; Fokker 100) F28-MK100

Grumman Gl59 Gl59

Grumman Gll59 Gll59

Grumman GIV G-IV

Gulfstream 200/IAI Galaxy G200

Gulfstream GIV-X/G450/G350 Gulfstream GIV-X/G450/G350

Gulfstream GV (except GV-SP) GV

Gulfstream GV-SP (500& 550) GV-SP

IAI Westwind 1124 IAI-1124

IAI Astra 1125 IAI-1125







Group 20 - Table 1


IAI Astra 1125 SPX IAI-1125 SPX

Jetstream 4100 Jetstream 4100

Learjet-24D/24F/25B/25C/31/35/35A/36/36A GL-20/30

Learjet 31A GL-31A

Learjet 45 GL-45

Learjet 55 GL-55

Learjet 60 GL-60

Let L410 and Let L420 Let L420

McDonnell Douglas DC-9-30 DC9-30

McDonnell Douglas DC-9-81/82/83

(MD81; MD82; MD83)

DC9-81/82/83

Raytheon 390 (Premier 1) Raytheon 390

Saab SF340 SF340

Sikorsky S61 S61 Series

Sikorsky S76 S76

Sikorsky S92 S92

Note 1: The –400 (910K) refers to the B747-438 aircraft fitted with the auxiliary fuel tank

in the forward cargo compartment and introduced into the Qantas fleet late 2002. This

aircraft has other modifications that have allowed the aircraft to operate at a higher

MTOW of 910,000 lbs.

Note 2: Lancair aircraft are now manufactured by Lancair in kit form and by Columbia as

complete certificated aeroplanes.

Note 3: Holders of an AMD 900 rating in the instrument category need only to supply SOE

in chapters 22 and 34 (navigation) appropriate to the AMD 900EX to be eligible for the

rating.

Note 4: Where a S76 instrument rating has a limitation applied to a specific autopilot

system fitted, the limitation applies only to the autopilot system and associated

components.

Note 5: A S76 instrument rating with the SPZ7600 limitation also allows certification for

the SPZ760 and SPZ7000 systems fitted to the S76.

Note 6: Holders of an Avro 146-RJ70 rating may certify for the Avro 146-RJ70/85/100

only after completing the appropriate CAR 214 training. Licence endorsements will be







Group 20 - Table 1


updated at licence renewal.






5. Experience Requirements for the Grant of a Licence or

Endorsement of a Rating

The minimum experience time period required for the grant of a licence is four years aircraft

maintenance or aircraft component maintenance. The four years maintenance experience

includes two years aircraft maintenance experience in the category being applied for.

In addition to the four general and two years category experience, the applicant also needs to

have satisfied the Schedule of Experience (SOE) requirements for the Group being applied

for. The minimum practical experience required for the grant of a licence or the endorsement

of an additional rating is specified as follows:

(a) For aircraft classified as Group 20 the minimum practical experience is specified

within this AAC (Table 2) and in a document published by CASA titled

“Schedule Of Experience Instrument 20." Minimum practical experience

requirements may also be specified within an approved Accelerated Training or

Practical Consolidation Training (PCT) Program.

(b) For instrument systems classified Groups 1, 3, 5, 7, 8, 9 and 10 the minimum

practical experience is specified within this AAC (Table 4) and in a document

published by CASA titled “Schedule Of Experience Instrument 1, 3, 5, 7, 8, 9

and 10" (Form 919).

If the information within the AAC is found to conflict with that provided within SOE

documents then the AAC is to be taken as the authoritative document. The experience

reductions detailed within the tables are only a guide to the assessing AWI. If the complexity

of an aircraft or aircraft group being used as the basis for a reduction is not comparable to the

aircraft or aircraft group being sought, then the AWI may vary the experience reduction

applied accordingly. Because of these uncertainties LAME’s are encouraged to have their

particular situation assessed by an AWI prior to compiling their SOE.

Only central office AWI may assess SOE reductions applicable to:

(a) Competency Technical Category applicants (overseas & current/discharged

military personnel who have been employed as aircraft engineers);

(b) accelerated training program applicants; and

(c) practical consolidated training applicants.

When determining the minimum hours an individual will require for a Group 20 instrument

rating, reference is to be made to Tables 1 and 2. Table 1 titled “Schedule Of Experience

Complexity Comparison For Group 20", lists aircraft types that are considered to be of

similar complexity. Applicants should first consult this table to establish which “List"

includes the aircraft for which they seek a rating. Following this, applicants should consult

Table 2 titled “Instrument Base Hours Requirement”. The appropriate hours in Table 2 are

then transcribed into the SOE.






For the grant of an additional Group 20 Type rating, the minimum hours set out in Table 2

may be reduced. Refer to Table 3 titled “Rating Reduction” to identify the reduction that

may be claimed.

When determining the minimum hours an applicant will require for Groups 1, 3, 5, 7, 8, 9

and 10 instruments rating, reference is to be made to Tables 4 and 5. Table 4 provides

applicants the base hours required and Table 5 provides applicants with reductions that may

be applicable to their own situation.

However, it should be noted that the final decision to grant a reduction rests

with the airworthiness inspector at the time of processing the licence

application.

Practical experience in the Instrument Category may be gained concurrently with experience

in the Electrical and/or Radio Categories.

Section 5 - Table 1 - Schedule of Experience Complexity Comparison for Group 20

Aeroplanes List 1 Aeroplanes List 2 Aeroplanes List 3 Helicopters List 1

AMD F10/20 A300-B4 A319/320/321 AW139

AMD F200 A300-600/A310 A330-200/300 Bell 214 ST

AMD F50 Avro 146-

RJ70/85/100

A380 EC225

AMD F900 B707-300 B737-600/7/8/9 SA330

AMD F900EX B717-200 B777-200/300 SA332L Series

ATR 42-200/300 B727-100/200 ERJ 170 S61 Series

ATR 42-400/500 B737-100/200 ERJ 190 S76

BAe 125-Series to

700

B737-300/400 S92

BAe 125-

800/Hawker 800/900

B747-Series

BAe 125-

1000/Hawker 1000

B747-400

BAe 146 Series B757-200

BD-700 B767-200/300

Beechjet 400A CRJ 100/200 Series

C500/550/560XL DC9-30

C510 Mustang DC9-81/82/83

C525 EMB 135/145








C650 F28 Series

C680 F28-MK 100

C750 B747 (LE)

CL300

CL600/601/604/605

CASA 212-400

Convair 240

Convair 340

Convair 440

Convair 580

Dassault F2000

DHC-7

DHC-8-100/200/300

DHC-8-400

Eclipse 500

Dornier 328

EMB 120

EMB 500

F27 Series

F27-MK050

G-IV

GV

GV-SP

G129

G1159

G200

GIV-X/G450/G350

GL-20/30 Series

GL-45








GL-55

GL-60

HAMC Y12(II)

HS 748

IAI-1124

IAI-1125 & IAI-

1125

Jetstream 4100

Let L420

MU300/Beechjet

400

Raytheon 390

SF340

Section 5 - Table 2 - Instrument Base Hours Requirement

ATA Chapter

Area

Helicopters

List 1

Aeroplanes

List 1

Aeroplanes

List 2

Aeroplanes

List 3

21 15 (#4) 15 30 10

22 100 100 100 50

24 10 * 10 * 20 * 20 *

27 -- 15 20 10

28 10 20 30 10

29 5 * 10 * 10 * 10 *

31 10 40 55 20

34 100 100 100 50

35 -- 20 20 20

36 5 (#4) 5 10 10

49 -- 10 * 10 * 10 *

77 to 79 10 10 10 10






* Denotes total hours applicable to Instrument or Electrical category.

Note 2: No more than 50% of any ATA chapter area requirement specified in this AAC can

be met by the inclusion in the SOE of checks/inspections carried out as a result of ATA 5-

20 or ATA 5-50.

Note 3: Relevant maintenance simulator training, limited to 20% of the total hours in any

task area, may be accepted as appropriate experience. If a reduced requirement has

already been applied, then only 10% of the total hours for any task area would be allowed.

Note 4: SOE requirement only applies if the system is fitted to the aircraft.

This table denotes the percentage reduction in the SOE base hour requirements applicable

when applying for a Group 20 instrument rating.

Section 5 - Table 3 - Rating Reduction

Seeking Instrument Type Ratings Reduction

1st aircraft instrument type rating Nil

2nd aircraft instrument type rating 25%

3rd aircraft instrument type rating 50%

4th & subsequent aircraft instrument type rating 75%

Note 1: The above table represents the general reductions that may be claimed by

applicants applying for aeroplane or helicopter instrument ratings. This table is not

designed to account for the “ifs, buts and what abouts”. If a person believes that they

should have a different reduction to that normally available via the table, then the person

must refer to paragraph 3.10 of the Schedule of Experience and make representation

accordingly.

Note 2: Paragraph 3.10 of the Schedule of Experience provides for SOE reduction if an

applicant believes that the hours for a particular ATA chapter represents an onerous task.

Onerous tasks include:

those that cannot be easily satisfied due to inherent reliability of systems and

equipment; and

those that the applicant believe they have already satisfied via experience on systems

and equipment which are closely allied to those being applied for.

A claim for a reduced experience requirement (beyond that provided by Table 3) may also

be based on the evidence provided by previously submitted SOE. Any application for a

reduction in SOE requirements should be submitted as soon as possible after obtaining the

SOE.






Section 5 - Table 3 - Rating Reduction

Note 3: Where an aircraft is of the same basic type but different dash number, they will be

treated as one (1) rating for the purposes of the Rating Reduction Table 3.

Note 4: The holder of an Instrument licence rated Group 1 applying for a Group 20

aircraft rating may be granted a 20% reduction from the hours required in Table 2. This

reduction is in addition to the reduction specified in this table to a maximum of 75%. The

reduction is limited by ATA chapter dependent on other lower group instrument ratings

held. ATA chapter grant is limited as follows:

ATA 21 Airconditioning/Pressurisation – Group 10 required

ATA 22 Autoflight – Group 5 or 7 required

ATA 34 Navigation Systems (instrument) Group 8 required

Note 5: CASA has historically delineated between helicopter and aeroplane ratings when

determining allowable SOE reductions. This delineation is no longer being made by CASA;

however, the applicant for SOE reduction must have experience in all applicable ATA

chapters of the rating being applied for the reduction to be granted. eg the holder of a

group 20 instrument helicopter rating may or may not have air conditioning/pressurisation

experience, such a person would still need to get full SOE in ATA Chapter 21.

Note 6: The maximum reduction in SOE base hours is 75% unless specifically stated.

Section 5 - Table 4 – Lower Groups Instruments Base Hours Requirement

Group Experience Task Area Full

Hours

Group 1

General Instrument

Systems

Scheduled Maintenance

Gyroscopic Instruments, Oxygen and Pneumatic

Systems

Engine Instruments & Engine Indicating Systems

Direct Reading Compasses (minimum 6

calibrations)

Fuel Indicating Systems (minimum 6 calibrations)

Pitot Static & Associated Instruments & Systems

(minimum of 6 pitot-static leak tests)

100 hours

50 hours

40 hours

15 hours

15 hours

50 hours

Group 3

Autopilots/Flight

Directors Single Axis

Autopilots/Flight Directors Single Axis

40 hours

Group 5

Autopilots/Flight

Directors Multi Axis

Autopilots/Flight Directors Multi Axis 60 hours

Group 7

Autopilots/Flight

Directors Helicopters

Autopilots/Flight Directors Helicopters 60 hours

Group 8

Remote Indicating

Remote Indicating Compass Systems

(minimum of 2 calibrations)

30 hours






Section 5 - Table 4 – Lower Groups Instruments Base Hours Requirement

Group Experience Task Area Full

Hours

Compass Systems

Group 9

Inertial Navigation and

Inertial Reference

Systems

Inertial Navigation and Inertial Reference Systems 25 hours

Group 10

Pressurisation Systems

Pressurisation Systems 25 hours

Section 5 - Table 5 – Lower Groups Instrument Rating Reductions

This table denotes the percentage reductions in the SOE base hours requirement, which is

applicable when applying for a lower Instrument Group rating.

Rating Held Group Experience Sought

1 3 5 7 8 9 10

Inst Group 3 30%

Note 4

Inst Group 5 100%

Note 4

50%

Inst Group 7 50% 50%

Inst Group 20 80% 80% 80% 80% 80% 80% 80%

Airframe Group 10 100%

Airframe/Engine 10%

Note 1: Only Holders of Group 20 types that have systems relating to the group sought

may be granted the reduction.

Note 2: Holders of an engine and/or airframe licence may be granted a reduction of 10%

in the hours required for each of the Group 1 task areas.

Note 3: Relevant maintenance simulator training, limited to 20% of the total hours in any

task area, may be accepted as appropriate experience. If a reduced requirement has

already been applied then only 10% of the total hours for any task area would be allowed.

Note 4: Experience claimed in gaining a Group 5 rating may be counted towards the

experience required for a Group 3 rating. An applicant who is using Group 3 experience

towards a Group 5 rating has a 30% reduction in the SOE requirement for Group 5

systems.






This table denotes the percentage reduction in the SOE base hours requirement

Section 5 – Table 6 - Rating Reduction - Holder of Group 20 Airframe / Engine

Categories converting to an initial Group 20 Instrument Rating for a given

Type Rating

ATA

Chapter

Topic Area Reduction available Focus for

Remaining SOE

21-

(30/31)

Airconditioning General

Pressurisation Systems

25% Indication and

control

22 Autoflight Systems 25% Indication and

control

24 Electrical Power 25% Indication and

control

27 Flight Control Systems - Stall

Warning

50% Indication and

control

28 Fuel Systems 50% Indication and

control

29 Hydraulic Power 50% Indication and

control

31

31-31

31-60

Indicating & Recording Systems

Air Data System

Pitot Static System

Clocks

Flight Data Recorder

EFIS EICAS

25%

34

Navigation Systems:

General

Radio Interface

ACARS, SELCAL, LARP,

INS/IRS

Compass

Flight Management System

Ground Proximity Warning

TCAS

25%






Section 5 – Table 6 - Rating Reduction - Holder of Group 20 Airframe / Engine

Categories converting to an initial Group 20 Instrument Rating for a given

Type Rating

ATA

Chapter

Topic Area Reduction available Focus for

Remaining SOE

35 Oxygen Systems:

Passenger/ Crew

100%

36 Pneumatic Systems 25% Indication and

control

49 APU 50% Indication and

control

77-79 Engine Indicating Systems Oil

Systems

50% Indication and

control

6. Examination Requirements

This section details the examinations required to be passed prior to the issue of a licence or

endorsement of additional ratings in the instrument category.

Section 6 – Table 1 - Examination Requirements

EXAMINATION CODE LICENCE GROUPS

1 3 5 7 8 9 10 20

Core Subjects

Airworthiness Administration AA * * * * * * * *

Electrical Fundamentals QA * * * * * * * *

Aerodynamics and Maintenance

Practices

QB * * * * * * * *

Basic Logic and Semi-

conductor Theory

QC * * * * * * * *

AC Theory and Power Systems QD * * * * * * * *

Digital Techniques, Computer

and Electrical Devices

QE ** ** ** ** ** ** ** **

Specific Group Subjects

Aircraft General Instruments - I IA * * * * * * * *

Aircraft General Instruments - II IZ * * * * * * * *








Single Axis Radio Coupled

Autopilots/Flight Director

ID * #

Multi-Axis Radio Coupled

Autopilot/Flight Directors

IF * #

Helicopter Autopilot/Flight

Directors

IH * #

Remote Indicating Compass

Systems

IJ * #

Inertial Navigation and Inertial

Reference Systems

IK * #

Pressurisation IM * #

Specific Group

Written IS #

Oral IO #

* Denotes the prerequisite examinations to be passed for each group of type.

# Denotes the examinations to be passed for Group 20 as applicable.

** Denotes a credit for examination QE is only necessary where certification is required

for a system classified as digital in accordance with sub-section 2 of CAO Section 100.95

issue 4 or for the initial issue of a licence after 1 July 1989.

Note 1: A separate specific type examination (IS) is required for each additional rating in

group 20.

Note 2: The written examination IS will only be available for Group 20 aircraft NOT

classified high capacity should a mandatory training course acceptable to the Authority

as required in CAO 100.95 para 5.2 not be available.

Note 3: An applicant for Group 20 must hold examination credits for all those groups

which form the specific aircraft installation concerned.

Note 4: Where an aircraft in Group 20 is considered by the Authority to be sufficiently

similar to an aircraft for which a rating is held, IS becomes IO.

Note 5: Applicants who hold an examination credit for IF may be granted exemption from

examination ID.

Note 6: Applicants who have not qualified or have not been granted a credit with respect

to examination QE will have their licences endorsed accordingly, ie, “ratings held within

this category are limited to non-digital systems only” This limitation will be lifted upon

passing examination QE. The endorsement will be made in section xiii of the licence.








Note 7: After 1 July 1989 a pass in examination QE will be required prior to the initial

issue of a licence in the instrument category.

Note 8: A credit for examination QB may be granted to a person who holds credit for

examinations BA, BB and BC.

Note 9: The requirement for a pass in examination IZ will be effective from 1 July 1989.

(Prior to 1 July 1989, IA incorporated IZ).

Note 10: A specific type oral examination IO is also required for each rating in Group 20

where the practical experience for that rating is gained within an approved Practical

Consolidation Training (PCT) Program.

Mandatory Training Courses - Group 20

As specified in paragraph 5.2 of CAO Section 100.95 Issue 4, all applicants for a Group 20

Instrument rating, for aircraft classified Group 20 and listed in Table 1 of sub-section 4 of

this AAC, are required to have successfully completed a relevant training course acceptable

to the Authority as a prerequisite to gaining the rating.

For a variety of reasons courses and/or examinations may not be available to personnel who

are trying to gain a type course examination credit. CASA no longer allocates resources to

the maintenance, update or delivery of Group 20 Specific Type examinations. Aircraft type

training is an activity that CASA believes should be commercially delivered.

Situations may arise where AME are unable to access type course training and associated

examination credit. AME so affected are encouraged to contact CASA so that the

individual’s particular circumstances can be reviewed.

Should an aircraft not be listed, then one of the following applies:

(a) A training course acceptable to the Authority is available.

(b) The aircraft is not on the Australian register and no CASA examination will be

provided; or

(c) The aircraft has just been placed on the Australian register. Therefore, the

candidate should contact the Authority to ascertain if the Authority is able to

provide the examination.






Waiver of Mandatory Specific to Type Instrument Training Course Requirements –

Instrument Group 20

CASA recognizes that some Group 20 Aircraft (mainly Corporate Jet) have instruments fits

that are substantially the same for different aircraft types. The CASA approved courses for

such aircraft are often comprised of two sections – a general aircraft type course and a

specific to type instrument course.

If a LAME holds a Group 20 instrument category rating, pertaining to a particular instrument

fit e.g. Collins Proline 21, and wants to gain a subsequent Group 20 instrument rating on an

aircraft with the same instrument fit, that LAME may apply to Maintenance Personnel

Licensing for recognition of that rating.

Whilst the applicant would still be expected to complete the general aircraft type course it is

possible that the specific to type instrument course training requirement would be waived.

Possible MPL determinations include:

Grant of IS upon completion of the general aircraft type course; and

Schedule of Experience reductions.

The following Table is for historical purposes only as CASA no longer carries

out Specific Type Examinations

Instrument - Group 20 Specific Type Examinations and Examination

Codes - Table 2

EXAMINATION DESCRIPTION CODE

AIRCRAFT TYPE PART 1 PART 2

Aerospatiale SA 330 IS001 Nil

AMD Falcon 10/20 IS003 IS004

AMD Falcon 50/200 IS005 IS006

AMD Falcon 900 IS007 IS008

BAe (BH/HS) 125-

3B/400/600/700/800

IS053 IS054

Bell 214ST IS055 Nil

Canadair CL600/601 IS101 IS102

Cessna 500/550/560 IS103 IS104

Cessna 650 IS105 IS106

Gates Learjet 20/30 Series IS241 IS242

Gates Learjet 55 IS243 IS244






Instrument - Group 20 Specific Type Examinations and Examination

Codes - Table 2

EXAMINATION DESCRIPTION CODE

AIRCRAFT TYPE PART 1 PART 2

Grumman G159 IS245 IS246

Grumman G1159 IS247 IS248

IAI Westwind 1124 IS311 IS312

Saab SF340 IS541 IS542

Sikorsky S76 IS545 Nil

Date post:	30-Apr-2018
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