Pin Gear
No failure report names the pin gear. 2 FAA approvals let 2 companies make a replacement pin gear, Direct Aircraft Products LTD 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 pin gear and sell it as an approved part for the models named. These are the companies holding such approvals for a pin gear:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aar Pma Products | PIN-GEAR BOX AR656302 | 656302 | Pratt & Whitney JT9D-3A, -7, -7A | 2008-01-30 | current |
| Direct Aircraft Products LTD | Pin Gear Box AR656302 | Pratt & Whitney 656302 | Pratt & Whitney JT9D-3A/-7/-7A/-7AH/-7F/-7H/-7J/-7R4D... | 1999-12-12 | 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.