Tsd Installation
No failure report names the tsd installation. 3 FAA approvals let 1 company make a replacement tsd installation, Butler National Corporation holding the most (3).
Approved replacement parts 3 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a tsd installation and sell it as an approved part for the models named. These are the companies holding such approvals for a tsd installation:
For these models most: Boeing 747 (3).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Butler National Corporation | TSD Installation, Mounting Gusset, Wing Tank 840147-27 | Modification Part | Boeing 747-100, -200, -300 | 2003-02-23 | current |
| Butler National Corporation | TSD Installation, Mounting Gusset, Center Tank 840147-25 | Modification Part | Boeing 747-100, -200, -300 | 2003-02-23 | current |
| Butler National Corporation | TSD Installation, Mounting Gusset, Wing Tank 840147-28 | Modification Part | Boeing 747-100, -200, -300 | 2003-02-23 | 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.