Timer Module
No failure report names the timer module. 3 FAA approvals let 3 companies make a replacement timer module, Triumph Accessory Services holding the most (1).
Approved replacement parts 3 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a timer module and sell it as an approved part for the models named. These are the companies holding such approvals for a timer module:
For these models most: Piper PA-42 (3), Piper PA-31 Navajo and Chieftain (3).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Lamar Technologies LLC | Timer Module, Surface de-ice B-00353-1 | 488-704 | Piper PA-31 Series, PA-31P, PA-42-720/1000 | 1999-05-31 | current |
| Lamar INC | Timer Module Surface De-Ice B-00353-1 | 488 704 | Piper PA-31 Series, PA-31P, PA-42-720/1000 | 1992-12-31 | current |
| Triumph Accessory Services | Timer Module Surface De-Ice B-00353-1 | Piper 488 704 | Piper PA-31 Series, PA-31P, PA-42-720/1000 | 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.