Plug Hydro
No failure report names the plug hydro. 2 FAA approvals let 1 company make a replacement plug hydro, Sun Air Parts holding the most (2).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a plug hydro and sell it as an approved part for the models named. These are the companies holding such approvals for a plug hydro:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Sun Air Parts | Plug Hydro Propeller Shaft SAP29913 | Pratt & Whitney 29913 | Pratt & Whitney R-1340 Wasp Series S3H1G Only | 1997-08-27 | current |
| Sun Air Parts | Plug Hydro Propeller Shaft SAP31941 | Pratt & Whitney 31941 | Pratt & Whitney R-1830 all Dash No.s up to and... | 1997-07-22 | 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.