The U.S. aircraft register, updated daily
Parts

Pneumatic Door

No failure report names the pneumatic door. 5 FAA approvals let 1 company make a replacement pneumatic door, Paravion Technology INC holding the most (5).

Approved replacement parts 5 parts manufacturer approvals

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

For these models most: Airbus Helicopters AS350 AStar (Écureuil), now H125 (2), Md Helicopters Inc 500 (1), Bell 412 (1), Bell 407 (1), Bell 212 (1), Bell 205 (1), Bell 204 (1).

MakerPartReplacesFitsGrantedStatus
Paravion Technology INCPneumatic Door Opener MDL DL-407PDO-100MODIFICATION PARTBell Helicopter Textron 4071998-06-24current
Paravion Technology INCPneumatic Door Actuators Installation Dwg DL-369DAModification PartMD Helicopters, Inc. MDHI) (369 Series, 500N1992-06-04current
Paravion Technology INCPneumatic Door Actuator ES39200-5Aerospatiale Helicopter Corp 350A25109521Eurocopter France AS350/3551991-09-08current
Paravion Technology INCPneumatic Door Actuators Dwg 212DA-100DLModification PartBell 204B, 205A, A-11991-09-08current
Paravion Technology INCPneumatic Door Actuator ES39200-4Aerospatiale Helicopter Corp 350A25109021Eurocopter France AS350/3551991-09-08current

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.