Head Cylinder
No failure report names the head cylinder. 5 FAA approvals let 2 companies make a replacement head cylinder, Airforms LLC holding the most (3).
Approved replacement parts 5 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a head cylinder and sell it as an approved part for the models named. These are the companies holding such approvals for a head cylinder:
For these models most: Cessna 172 Skyhawk (3).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Airmotive Components LLC | Head-Rear Cylinder ACP415832 | Pratt & Whitney415832 | Pratt & Whitney Double Wasp CA3, CA18, CB3 | 2023-10-31 | current |
| Airmotive Components LLC | Head-Front Cylinder ACP415828 | Pratt & Whitney415828 | Pratt & Whitney Double Wasp CA3, CA18, CB3 | 2023-10-31 | current |
| Airforms LLC | HEAD INNER CYLINDER BAFFLE AF0555175-2 | 0555175-2 | Textron Aviation Inc. 172B, 172C | 2022-10-25 | current |
| Airforms LLC | HEAD INNER CYLINDER BAFFLE AF0555175-3 | 0555175-3 | Textron Aviation Inc. 172D, 172E, 172F | 2022-10-25 | current |
| Airforms LLC | HEAD INNER CYLINDER BAFFLE AF0555175-1 | 0555175-1 | Textron Aviation Inc. 172B, 172C, 172D | 2022-10-25 | 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.