Heater Core
No failure report names the heater core. 4 FAA approvals let 2 companies make a replacement heater core, Knisley Welding 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 heater core and sell it as an approved part for the models named. These are the companies holding such approvals for a heater core:
For these models most: Cessna T337 (3).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aerospace Welding Minneapolis, INC. | Heater Core Assembly KA642663(Note: Part does... | 642663 | Continental... TSIO-520-UB | 2024-01-31 | current |
| Knisley Welding INC | Heater Core Assembly K1554008-32 | 1554008-2, 1554008-32 | Cessna T337H | 2008-03-26 | current |
| Knisley Welding INC | Heater Core Assembly K1554008-32 | 1554008-2 1554008-32 | Cessna T337H | 2007-03-26 | current |
| Knisley Welding INC | Heater Core Assembly K1554008-32 | Cessna Aircraft 1554008-2 , 1554008-32 | Cessna T337H | 1996-07-28 | 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.