Module Main
No failure report names the module main. 4 FAA approvals let 2 companies make a replacement module main, Bae System Controls, 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 module main and sell it as an approved part for the models named. These are the companies holding such approvals for a module main:
For these models most: Boeing 767 (2), Boeing 747 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Bae System Controls, INC. | MODULE ASSY MAIN FUEL STANDPIPE 233T3254-304 | 233T3254-304 | The Boeing Company 767-2C Series | 2018-03-05 | current |
| Bae System Controls, INC. | MODULE ASSY MAIN FUEL TRANSFER VALVES 233T3254-305 | 233T3254-305 | The Boeing Company 767-2C Series | 2018-03-05 | current |
| Abex/Nwl Aerospace | Module Assembly Main Landing Gear Steering 77144 | Boeing 60B80044-1 | Boeing 747 | 1993-11-14 | current |
| Abex/Nwl Aerospace | Module Assembly Main 77144-01 | Boeing 60B80044-2 | Boeing 747 | 1993-10-25 | 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.