Valve Unit
No failure report names the valve unit. 4 FAA approvals let 3 companies make a replacement valve unit, J C Carter CO 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 valve unit and sell it as an approved part for the models named. These are the companies holding such approvals for a valve unit:
For these models most: Boeing 777 (2), Boeing 767 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Eaton Corporation | Valve Unit Assy 40884-23 | 40884-23 | The Boeing Company 767-400ER Series | 2026-03-25 | current |
| J C Carter CO INC | Valve Unit Assembly 40885-5 | Boeing 60B92602-20 | Boeing 777-200, 777-300, and 757-200 Series | 1998-09-24 | current |
| J C Carter CO INC | Valve Unit Assembly 40884-7 | Boeing 60B92602-19 | Boeing 777-200, 777-300, and 757-200 Series | 1998-09-24 | current |
| Meggitt Aircraft Braking Systems Corporation | Valve Unit 9550264 | BAC 9550264 | British Aerospace 1-11 300 | 1990-05-14 | 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.