Retractor Spring
No failure report names the retractor spring. 4 FAA approvals let 3 companies make a replacement retractor spring, Ontic Engineering & Manufacturing INC holding the most (2).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a retractor spring and sell it as an approved part for the models named. These are the companies holding such approvals for a retractor spring:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Ontic Engineering & Manufacturing INC | Retractor Spring Assy. D2490 | D2490 | Lockheed L1011-385-1 | 2007-05-14 | current |
| Ontic Engineering & Manufacturing INC | Retractor Spring Assembly D2490 | D2490 | Lockheed L1011-385-1 | 2000-07-19 | current |
| Vickers INC, Electromech Division | Retractor Spring Assembly D2490 | 672362-101 | Lockheed L1011-385-1, -1-14, -1-15 | 1998-04-15 | current |
| Ontic Engineering & Mfg | Retractor Spring Assembly D2490 | Vickers-EEMCO D2490 | Lockheed L1011-385-1 | 1998-03-15 | 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.