Retaining Collar
No failure report names the retaining collar. 2 FAA approvals let 1 company make a replacement retaining collar, Encotech INC 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 retaining collar and sell it as an approved part for the models named. These are the companies holding such approvals for a retaining collar:
For these models most: Boeing 747 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Encotech INC | Retaining Collar-Fwd Main Carriage Sup Bgr I/B Flap 69B11223EI-3 | Boeing 69B11223-3 | Boeing 747-100, -200, -300 | 1997-04-07 | current |
| Encotech INC | Retaining Collar-Fwd Main Carriage Sup Bgr I/B Flap 69B11223EI-2 | Boeing 69B11223-2 | Boeing 747-100, -200, -300 Series | 1997-04-07 | 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.