Rib Wing
No failure report names the rib wing. 7 FAA approvals let 2 companies make a replacement rib wing, Carson Helicopters, INC. holding the most (5).
Approved replacement parts 7 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a rib wing and sell it as an approved part for the models named. These are the companies holding such approvals for a rib wing:
For these models most: Boeing 75 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Carson Helicopters, INC. | RIB-WING BOX FRAMES 11 RHS CHI-212-302-65 | “ | “ “ | 2021-05-26 | current |
| Carson Helicopters, INC. | RIB-WING BOX FRAMES 8 RHS / 11 LHS CHI-212-302-64 | “ | “ “ | 2021-05-26 | current |
| Carson Helicopters, INC. | RIB-WING BOX FRAMES 9 RHS / 10 LHS CHI-212-302-66 | “ | “ “ | 2021-05-26 | current |
| Carson Helicopters, INC. | RIB-WING BOX FRAME 8 LHS CHI-212-101-27 | “ | “ “ | 2021-05-26 | current |
| Carson Helicopters, INC. | RIB-WING BOX FRAMES 10 RHS / 9 LHS CHI-212-302-67 | “ | “ “ | 2021-05-26 | current |
| Big Sky Stearman | Rib Assy Upper Wing Adj to Strut LWR BS75-1211 | 75-1211 | Boeing 75 Series | 2007-06-28 | current |
| Big Sky Stearman | Rib Assy Upper Wing Adj to Strut BS75-1107 | 75-1107 | Boeing 75 Series | 2007-06-28 | 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.