Tower Shaft
0 failure reports named the tower shaft in the last ten years, 4 since 1996. 2 FAA approvals let 1 company make a replacement tower shaft, Dupont Tribon Composites INC holding the most (2). The reports call it "tower shaft", "tower shaft seal".
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1996 | 4 |
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a tower shaft and sell it as an approved part for the models named. These are the companies holding such approvals for a tower shaft:
For these models most: Boeing 707 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Dupont Tribon Composites INC | Tower Shaft 8361 | Boeing BACB10A, Tribon LB-7077-A | Boeing 707 | 1992-10-21 | current |
| Dupont Tribon Composites INC | Tower Shaft 8360 | Boeing BACB10A, Tribon LB-7078-A | Boeing 707 | 1992-10-21 | 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.