Switch Position
No failure report names the switch position. 4 FAA approvals let 2 companies make a replacement switch position, Haydon Kerk Motion Solutions holding the most (3).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a switch position and sell it as an approved part for the models named. These are the companies holding such approvals for a switch position:
For these models most: Boeing 737 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Wencor LLC | Switch Position Indicating 159672WE | 159672 | The Boeing Company 737-800 Series | 2026-04-06 | current |
| Haydon Kerk Motion Solutions | Switch position indicating 62726-1 | P&W 785551 | Pratt & Whitney JT9D-7R4G2, JT9D-7Q, JT9D-7Q3 | 1995-02-07 | current |
| Haydon Kerk Motion Solutions | Switch position indicating 62742 | P&W 785550 | Pratt & Whitney JT9D-7Q, JT9D-7Q3, JT9D-7R4G2 | 1995-02-07 | current |
| Haydon Kerk Motion Solutions | Switch position indicating 62742-1 | P&W 797633 | Pratt & Whitney JT9D-7Q, JT9D-7Q3, JT9D-7R4G2 | 1995-02-07 | 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.