Gasket Option
No failure report names the gasket option. 7 FAA approvals let 3 companies make a replacement gasket option, Wencor LLC holding the most (4).
Approved replacement parts 7 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a gasket option and sell it as an approved part for the models named. These are the companies holding such approvals for a gasket option:
For these models most: Boeing 747 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Boeing Distribution, INC. | Gasket: Option IC AVST1140-31 | ST1140-31 | The Boeing Company 747-400 Series, 747-8 Series | 2024-04-12 | current |
| Boeing Distribution, INC. | Gasket: Option IC AVST1140-27 | ST1140-27 | The Boeing Company 747-400 Series, 747-8 Series | 2024-04-12 | current |
| Wencor LLC | Gasket Option 50L727WE | 50L727 | PRATT & WHITNEY PW4074, PW4074D, PW4077 | 2013-12-22 | current |
| Wencor LLC | Gasket Option 50L748WE | 50L748 | PRATT & WHITNEY PW4074, PW4074D, PW4077 | 2013-12-22 | current |
| Wencor LLC | Gasket Option 50L854WE | 50L854 | PRATT & WHITNEY PW4074, PW4074D, PW4077 | 2013-12-22 | current |
| Wencor LLC | Gasket Option 50L726WE | 50L726 | PRATT & WHITNEY PW4074, PW4074D, PW4077 | 2013-12-04 | current |
| Jet Avion Corporation A Heico Aerospace Company | Gasket Option JAST2311-13 | ST2311-13 | Pratt & Whitney PW4074D, PW4077D, PW4084D | 2007-08-01 | 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.