Airstair Drive
No failure report names the airstair drive. 2 FAA approvals let 2 companies make a replacement airstair drive, Whippany Actuation Systems LLC holding the most (1).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a airstair drive and sell it as an approved part for the models named. These are the companies holding such approvals for a airstair drive:
For these models most: Boeing 737 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Whippany Actuation Systems LLC | AFT Airstair Drive Actuator R1633M3 | 10-61343-3 | The Boeing Company 737-100 Series, 737-200 Series,... | 2013-09-03 | current |
| Ge Aviation Systems LLC (Formerly Smiths Aerospace Actuation Systems) | AFT Airstair Drive Actuator R1633M3 | 10-61343-3 | Boeing 737-100 Series, 737-200 Series,... | 2008-05-08 | current |
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.