Low Duct
No failure report names the low duct. 1 FAA approvals let 1 company make a replacement low duct, Sensor Systems, LLC holding the most (1).
Approved replacement parts 1 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a low duct and sell it as an approved part for the models named. These are the companies holding such approvals for a low duct:
For these models most: Boeing 747 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Sensor Systems, LLC | Low Duct Pressure Transducer 04390 | Boeing 04390 | Boeing 747-100, -200, -300 | 1994-08-10 | 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.