Thermocouple Element
No failure report names the thermocouple element. 4 FAA approvals let 2 companies make a replacement thermocouple element, Harco Laboratories INC holding the most (3).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a thermocouple element and sell it as an approved part for the models named. These are the companies holding such approvals for a thermocouple element:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Harco Laboratories INC | Thermocouple Element T/C & Flange Assembly HAD 19687 | Pratt & Whitney 1B4730 | Pratt & Whitney PW2037, PW2037(M), PW2040 | 2002-07-28 | current |
| Projects INC | Thermocouple Element 115005-28A | Detail Parts used in the repair of P&W 777925... | Pratt & Whitney JT9D-7, -7A, -7AH | 1998-12-09 | current |
| Harco Laboratories INC | Thermocouple Element TT4.95 EGT Probe HAD 21368 | P&W 50P392 | Pratt & Whitney PW4164, 4168, 4074 | 1994-11-15 | current |
| Harco Laboratories INC | Thermocouple Element T/C & Flange Assembly HAD 19687 Dwg HAD 19687... | Pratt & Whitney P/N 1B4730 | Pratt & Whitney PW 2040, F117-PW-100 (E17NE) | 1994-03-16 | 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.