The U.S. aircraft register, updated daily
Parts

Single Bottle

No failure report names the single bottle. 2 FAA approvals let 1 company make a replacement single bottle, Platinum Aviation Group holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

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

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

MakerPartReplacesFitsGrantedStatus
Platinum Aviation GroupSingle bottle Compressed Air System, Patient All parts listed on Master...Modification PartEurocopter France AS-350B, AS-350C, AS-350D2002-01-07current
Platinum Aviation GroupSingle Bottle, Compressed Air System, Patient All parts listed on Master...Modification PartEurocopter France AS-355E, AS-355F, AS-355F12002-01-07current

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.