Valve Position
No failure report names the valve position. 1 FAA approvals let 1 company make a replacement valve position, Lewis Engineering CO, Coltec Industries holding the most (1).
Approved replacement parts 1 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a valve position and sell it as an approved part for the models named. These are the companies holding such approvals for a valve position:
For these models most: Boeing 737 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Lewis Engineering CO, Coltec Industries | Valve Position 154LUA104 | Boeing S231N212-7 | Boeing 737-100 series, 737-200 series,... | 1998-12-27 | 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.