Hydraulic Heat
No failure report names the hydraulic heat. 3 FAA approvals let 1 company make a replacement hydraulic heat, Ametek Hughes Treitler 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 hydraulic heat and sell it as an approved part for the models named. These are the companies holding such approvals for a hydraulic heat:
For these models most: Boeing 737 (2), Boeing 757 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Ametek Hughes Treitler | Hydraulic Heat Exchanger 21018-000-1 | - | Boeing 737 series | 1986-06-19 | current |
| Ametek Hughes Treitler | Hydraulic Heat Exchanger 21018-000-2 | - | Boeing 737 series | 1986-06-19 | current |
| Ametek Hughes Treitler | Hydraulic Heat Exchanger 11483-000 | - | Boeing 757 | 1983-11-01 | 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.