Forward Dorsal
No failure report names the forward dorsal. 3 FAA approvals let 3 companies make a replacement forward dorsal, Rattray Aero Prod CO 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 forward dorsal and sell it as an approved part for the models named. These are the companies holding such approvals for a forward dorsal:
For these models most: Piper PA-28 Cherokee, Warrior, Archer and Arrow (3), Piper PA-32 Cherokee Six, Lance and Saratoga (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aero Fabricators INC | Forward Dorsal M-864-001 | Piper 99621-02 | Piper PA-28-151, PA-28-161 | 1998-03-08 | current |
| Aero Glass | Forward Dorsal Fairing AGP6070 | 99621-00 | Piper PA-28-151, -161, -181 | 1993-04-18 | current |
| Rattray Aero Prod CO | Forward Dorsal Fins, Aft Dorsal Fins, Vertical Fin Tips TG-5065, -5066, -5067 | Modification Parts | Piper PA-28-151, -161, -181 | 1993-04-05 | 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.