Switch Alternator
No failure report names the switch alternator. 4 FAA approvals let 2 companies make a replacement switch alternator, Triumph Accessory Services 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 switch alternator and sell it as an approved part for the models named. These are the companies holding such approvals for a switch alternator:
For these models most: Piper PA-34 Seneca (4), Piper PA-23 Apache and Aztec (4), Piper PA-38 Tomahawk (2), Piper PA-32 Cherokee Six, Lance and Saratoga (2), Piper PA-31 Navajo and Chieftain (2), Piper PA-30 Twin Comanche (2), Piper PA-28 Cherokee, Warrior, Archer and Arrow (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Lamar INC | Switch Alternator Inop. A-00258-1 | 587 863 | Piper PA-23 Series, PA-30 & PA-39, PA-38 | 1992-12-31 | current |
| Lamar INC | Switch Alternator Inop. A-00258-2 | 587 857 | Piper PA-23 Series, PA-31 Series, PA-31P | 1992-12-31 | current |
| Triumph Accessory Services | Switch Alternator Inop A00258-2 | Piper 587 857 | Piper PA-23 Series, PA-31 Series, PA-31P | 1991-07-17 | current |
| Triumph Accessory Services | Switch Alternator Inop. A-00258-1 | Piper 587 863 | Piper PA-23 Series, PA-30 & PA-39, PA-38 | 1991-07-17 | 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.