Heater Surface
No failure report names the heater surface. 10 FAA approvals let 1 company make a replacement heater surface, Cox and Company INC holding the most (10).
Approved replacement parts 10 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a heater surface and sell it as an approved part for the models named. These are the companies holding such approvals for a heater surface:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Cox and Company INC | Heater Surface Electric 2137-76 | 10-60911-76 | Boeing B737-700C Series | 2004-12-15 | current |
| Cox and Company INC | Heater Surface Electric 2137-77 | 10-60911-77 | Boeing B737-700C Series | 2004-12-15 | current |
| Cox and Company INC | Heater Surface Electric 2137-72 | 10-60911-72 | Boeing B747-400 Series | 2004-12-15 | current |
| Cox and Company INC | Heater Surface Electric 2137-70 | 10-60911-70 | Boeing B747-400 Series | 2004-12-15 | current |
| Cox and Company INC | Heater Surface Electric 2137-69 | 10-60911-69 | Boeing B747-400 Series | 2004-12-15 | current |
| Cox and Company INC | Heater Surface Electric 2137-71 | 10-60911-71 | Boeing B747-400 Series | 2004-12-15 | current |
| Cox and Company INC | Heater Surface Electric 2137-78 | 10-60911-78 | Boeing B737-700C Series | 2004-12-15 | current |
| Cox and Company INC | Heater Surface Electric 2137-79 | 10-60911-79 | Boeing B737-700C Series | 2004-12-15 | current |
| Cox and Company INC | Heater Surface Electric 2137-68 | 10-60911-68 | Boeing B737-500 Series | 2004-12-15 | current |
| Cox and Company INC | Heater Surface Electric 2137-67 | 10-60911-67 | Boeing B737-500 Series | 2004-12-15 | 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.