Rib Center
No failure report names the rib center. 9 FAA approvals let 2 companies make a replacement rib center, Jack R Thomson holding the most (6).
Approved replacement parts 9 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a rib center and sell it as an approved part for the models named. These are the companies holding such approvals for a rib center:
For these models most: Boeing 75 (9), Boeing IB75 (3), Boeing E75 Stearman Kaydet (3), Boeing D75 (3), Boeing B75 Stearman Kaydet (3), Boeing A75 Stearman Kaydet (3).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Big Sky Stearman | Rib- Center Section Root BS75-1305 | 75 -1305 | Boeing A75L3*, 75*, A75* | 2015-05-12 | current |
| Big Sky Stearman | Rib- Center Section Center BS75-1311 | 75-1311 | Boeing A75L3*, 75*, A75* | 2015-05-12 | current |
| Big Sky Stearman | Rib- Center Section Nose BS75-1306 | 75-1306 | Boeing A75L3*, 75*, A75* | 2015-05-12 | current |
| Jack R Thomson | Rib-Center Section Trailing-Edge number 2 JRT 75-1308 | Boeing 75-1308 | Boeing Wichita 75 Series | 1995-03-16 | current |
| Jack R Thomson | Rib-Center Section Trailing-Edge number 4 JRT 75-1310 | Boeing 75-1310 | Boeing Wichita 75 Series | 1995-03-16 | current |
| Jack R Thomson | Rib-Center Section Trailing-Edge number 3 JRT 75-1309 | Boeing 75-1309 | Boeing Wichita 75 Series | 1995-03-16 | current |
| Jack R Thomson | Rib-Center Section Nose JRT 75-1306 | Boeing 75-1306 | Boeing Wichita 75 Series | 1995-03-16 | current |
| Jack R Thomson | Rib-Center Section Center JRT 75-1311 | Boeing 75-1311 | Boeing Wichita 75 Series | 1995-03-16 | current |
| Jack R Thomson | Rib-Center Section Trailing-Edge number 1 JRT 75-1307 | Boeing 75-1307 | Boeing Wichita 75 Series | 1995-03-16 | 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.