Forward Intercostal
No failure report names the forward intercostal. 2 FAA approvals let 1 company make a replacement forward intercostal, Big Sky Stearman holding the most (2).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a forward intercostal and sell it as an approved part for the models named. These are the companies holding such approvals for a forward intercostal:
For these models most: Boeing PT-13 (2), Boeing A75 Stearman Kaydet (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Big Sky Stearman | Forward Intercostal BS75-1403L | Modification Part | BOEING A75L3 75 (Army PT-13) A75 (Army... | 2010-02-21 | current |
| Big Sky Stearman | Forward Intercostal BS75-1403U | Modification Part | BOEING A75L3 75 (Army PT-13) A75 (Army... | 2010-02-21 | 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.