Asc Valve
No failure report names the asc valve. 1 FAA approvals let 1 company make a replacement asc valve, Combustion Technologies 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 asc valve and sell it as an approved part for the models named. These are the companies holding such approvals for a asc valve:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Combustion Technologies | ASC Valve Seat ASC3500 DWG# ASC3500 Rev. A | PWA Valve Seat 3500 DWG #3500 Rev. D | Pratt & Whitney... R985 Wasp Jr. AN-1, -3, -4 | 1995-07-04 | 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.