Pin Valve
No failure report names the pin valve. 4 FAA approvals let 3 companies make a replacement pin valve, Design Engineering 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 pin valve and sell it as an approved part for the models named. These are the companies holding such approvals for a pin valve:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Air Repair INC | Pin-Valve Tappet Roller 20255 | 20255 | Air Repair, Inc. W670 Series | 2014-02-06 | current |
| Sun Air Parts | Pin-Valve Tappet Roller SAP1044 | Pratt & Whitney 1044 | Pratt & Whitney R-985 Wasp Jr. Series, AN-1, -3 | 1997-07-22 | current |
| Design Engineering | Pin-Valve Tappet Roller 1044 | P&W 1044 | Pratt & Whitney R1830-90D, -92, -94 | 1992-07-07 | current |
| Design Engineering | Pin-Valve Tappet Roller 56132 | P&W 56132 | Pratt & Whitney R2800-34, 83, 99 | 1992-07-07 | 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.