Antares Status

12 April 2016

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OA-5 MissionVehicle Integration Status

0000.7 Core Unpacked and Ready for Lift to Rails for Transfer to Dollies

0000.7 Core Transfer to Dollies

OA-5 MissionVehicle Integration Status

Aft Bay Removed

RD4A & RD5A Engines Unpacked at HIF

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Summary

Orbital ATK is Meeting its Commitment to NASA Under the CRS-1 Contract: Deliver the Remaining Cargo Obligation on the Original Contract by the End of 2016 Deliver Additional Cargo in 2017 Via Extension Missions

Purchase of Atlas V Missions Restarted Cargo Deliveries to ISS While Antares Upgrade to the 230 Configuration is Completed

Antares 230 configuration incorporates new-built RD-181 engines that are an ideal replacement for the previous AJ26 engines RD-181 certification testing program has completed successfully RD-181 flight engines will be acceptance tested through a flight-representative profile Replacement of the AJ26 engines with the RD-181 engines fully addresses the AIB

recommended corrective actions Antares 230 and Pad 0A schedules support the Stage Test in March 2016 followed

by the OA-5 mission in 2Q2016 and OA-7 mission in 4Q2016

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Orbital ATK Will Be Ready to Restart Cargo Deliveries to the ISS with Antares Later This Year