The U.S. aircraft register, updated daily
Parts

Compressed Air

No failure report names the compressed air. 6 FAA approvals let 4 companies make a replacement compressed air, Platinum Aviation Group holding the most (3).

Approved replacement parts 6 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a compressed air and sell it as an approved part for the models named. These are the companies holding such approvals for a compressed air:

For these models most: Boeing 757 (3), Airbus Helicopters AS355 TwinStar (1), Airbus Helicopters AS350 AStar (Écureuil), now H125 (1), Aerospatiale AS-355 (1).

MakerPartReplacesFitsGrantedStatus
Pq0955NeAssembly Compressed Air Auxiliary 14J81-2Boeing 14J81-2Boeing TC A2NM 757-200SERIES, 757-200CB SERIES,...2022-04-21current
Eaton Aeroquip IncorporatedASSEMBLY- COMPRESSED AIR AUXILIARY POWER SYSTEM 14J81-214J81-2Boeing 757-200 SERIES, 757-200CB SERIES,...2021-06-21current
Platinum Aviation GroupCompressed Air System, Single bottle, Patient All parts listed on Master...Modification PartEurocopter France AS-350B, AS-350C, AS-350D2003-03-02current
Platinum Aviation GroupCompressed Air System, Single Bottle, Patient All parts listed on Master...Modification PartEurocopter France AS-355E, AS-355F, AS-355F12003-03-02current
Platinum Aviation GroupCompressed Air System, Dual All parts listed on Master...Modification PartEurocopter France SA-365N2003-03-02current
Eaton Aeroquip LLCAssembly-Compressed Air Auxiliary Power System 14J81-2Boeing S355T310-9Boeing 757-200 Series, 757-200PF Series,...2001-02-27current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.