Cowl Access
No failure report names the cowl access. 3 FAA approvals let 2 companies make a replacement cowl access, Aviation Enterprises holding the most (2).
Approved replacement parts 3 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a cowl access and sell it as an approved part for the models named. These are the companies holding such approvals for a cowl access:
For these models most: Cessna T337 (2), Cessna P337 (2), Cessna 337 Skymaster (2), Airbus Helicopters AS350 AStar (Écureuil), now H125 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aviation Enterprises | Cowl Access door -top 0552173-8 | 0552173-8 | Cessna 337 series, T337 series, P337 series | 2003-04-23 | current |
| Aviation Enterprises | Cowl Access door -side 0552173-7 | 0552173-7 | Cessna 337 series, T337 series, P337 series | 2003-04-23 | current |
| Soloy LLC | Cowl Access Door 350-4120 | Modification Part | Eurocopter France AS350D | 2001-03-04 | 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.