Pin Shoulder
No failure report names the pin shoulder. 11 FAA approvals let 7 companies make a replacement pin shoulder, Wencor LLC holding the most (3).
Approved replacement parts 11 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a pin shoulder and sell it as an approved part for the models named. These are the companies holding such approvals for a pin shoulder:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Wencor LLC | Pin-Shoulder, Headless 3002376WE | 3002376 | Pratt & Whitney Canada Corp PT6A-6, PT6A-6A, PT6A-6B | 2017-11-19 | current |
| Wencor LLC | Pin Shoulder Headless 1B7168WE | 1B7168 | Pratt & Whitney PW2037, PW2037D, PW2037M | 2010-02-02 | current |
| Wencor LLC | Pin-Shoulder Headless .156 x .100 x .300 x .720 1B3150WE | 1B3150 | Pratt & Whitney PW2037, PW2037D, PW2037M | 2010-02-02 | current |
| Pacific Propeller INC | Pin Shoulder 6519479 | 6519479 | Pacific Propeller Aeroproducts A6441FN 606/606A | 2005-06-27 | current |
| Pacific Propeller INC | Pin Shoulder 6519479 | 6519479 | Pacific Propeller Aeroproducts A6441FN 606/606A | 2001-09-13 | current |
| Wencor West INC | Pin Shoulder Headless 1B7168WE | Pratt & Whitney 1B7168 | SUD PW2037, PW2037(M), PW2040 | 1999-09-30 | current |
| Turbine Kinetics INC, Subsidiary of Heico CORP | Pin-Shoulder, Headless KT-1040 | Pratt & Whitney 672274 | Pratt & Whitney JT9D-3A, 7, 7A | 1997-01-29 | current |
| Bristol Industries | Pin-Shoulder, Headless, .156 x .100 x .300 x .720 B02141 | Pratt & Whitney 1B3150 | Pratt & Whitney PW-2037 (Not approved for Extended... | 1995-06-26 | current |
| Bristol Industries | Pin-Shoulder, Headless .156, .100 & .300 .x .725 B02139 | Pratt & Whitney 623629 | Pratt & Whitney JT9D-3A, -7, -7A | 1995-06-26 | current |
| Pacific Sky Supply INC | Pin-Shoulder, Headless 538887P | Hamilton Standard 538887 | Hamilton Standard Division 54H60-91, -117 | 1994-02-23 | current |
| Mcclain International INC | Pin shoulder M2510 | P&W 715118 | Pratt & Whitney JT8D-209, -217, -217A | 1993-12-15 | 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.