Stem Washer
No failure report names the stem washer. 3 FAA approvals let 1 company make a replacement stem washer, Hrd Aerosystems INC holding the most (3).
Approved replacement parts 3 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a stem washer and sell it as an approved part for the models named. These are the companies holding such approvals for a stem washer:
For these models most: Gulfstream GIV-X G450 (1), Boeing 767 (1), Boeing 737 (1), Aerospatiale ATR 72 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Hrd Aerosystems INC | Stem Washer H201253 | 201253 | The Boeing Company 737-900ER Series | 2026-03-09 | current |
| Hrd Aerosystems INC | Stem Washer H201253 | 201253 | Gulfstream Aerospace... GIV-X | 2025-12-04 | current |
| Hrd Aerosystems INC | Stem Washer H201253 | 201253 | Aerospatiale ATR72-101, ATR72-201) Gulfstream... | 2006-04-10 | 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.