Retainer Coupling
No failure report names the retainer coupling. 5 FAA approvals let 3 companies make a replacement retainer coupling, Pti Technologies INC holding the most (3).
Approved replacement parts 5 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a retainer coupling and sell it as an approved part for the models named. These are the companies holding such approvals for a retainer coupling:
For these models most: Boeing 737 (3), Boeing 777 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Pti Technologies INC | “V” Retainer Coupling Assembly 7591722-101 | 7591722-101 | The Boeing Company 737-100 Series, 737-200 Series,... | 2020-10-22 | current |
| Pti Technologies INC | Kit V Retainer Coupling 7592103 | Boeing 10-60593-13 | Boeing 737-100, 737-200 | 2000-09-07 | current |
| Pti Technologies INC | V Retainer Coupling Assembly 7591722-101 | Boeing 7591722-101 | Boeing 737-600, -700, -800 | 2000-09-07 | current |
| Monogram Systems | V-Retainer Coupling 13202-049 | Lockheed 13202-049 | Lockheed L-1011-385-1, -1-14, -1-15 and 385-3 | 1998-07-30 | current |
| Voss Aerospace, A Division of Voss Industries INC | V-Retainer Coupling 643205A1137A | Boeing 643205A1137A | Boeing 777-200 | 1995-11-12 | 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.