Piston Dia
No failure report names the piston dia. 15 FAA approvals let 2 companies make a replacement piston dia, Airmotive Engineering CORP holding the most (13).
Approved replacement parts 15 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a piston dia and sell it as an approved part for the models named. These are the companies holding such approvals for a piston dia:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Superior Air Parts INC | Piston 5.25 DIA 8.5 1 Comp. Ratio Forged SA631475 P010 | 631475P010 | Continental... Continental(r)) (IO-520-A, -B, -BA | 2020-06-30 | current |
| Superior Air Parts INC | Piston 5.25 DIA 8.5 1 Comp. Ratio Forged SA631475 P015 | 631475P015 | Continental... Continental(r)) (IO-520-A, -B, -BA | 2020-06-30 | current |
| Airmotive Engineering CORP | Piston 4.375 Dia. 9.7 1 AEL11621P010 | Lycoming LW11621 Modification Article | Lycoming O-235-F1, F1B, F2A | 2015-01-14 | current |
| Airmotive Engineering CORP | Piston 4.375 Dia. AEL18729 | Lycoming LW-18729 | Lycoming O-235-K2A-, K2B, K2C | 2015-01-14 | current |
| Airmotive Engineering CORP | Piston 5.25-Dia. AEC654857 | Teledyne Continental 654857 | Teledyne Continental IO-550-A, B, B39 | 2015-01-14 | current |
| Airmotive Engineering CORP | Piston 4.375 Dia. 9.7 1 AEL11621 | Lycoming LW11621 | Lycoming O-235-F1, F1B, F2A | 2015-01-14 | current |
| Airmotive Engineering CORP | Piston 4.375 Dia. AEL18729P010 | Lycoming LW-18729 Modification Article | Lycoming O-235-K2A-, K2B, K2C | 2015-01-14 | current |
| Airmotive Engineering CORP | Piston 4.375 Dia. 9.7 1 AEL11621P020 | Lycoming LW11621 Modification Article | Lycoming O-235-F1, F1B, F2A | 2015-01-14 | current |
| Airmotive Engineering CORP | Piston 4.375 Dia. AEL18729P020 | Lycoming LW-18729 Modification Article | Lycoming O-235-K2A-, K2B, K2C | 2015-01-14 | current |
| Airmotive Engineering CORP | Piston 5 Dia, 7 1 Comp Ratio AEC534895 (and oversizes... | 534895 | Teledyne Continental E-165-2, 3, 4 | 2006-10-17 | current |
| Airmotive Engineering CORP | Piston 5.0 Dia., 8 1 comp. ratio AEC654721 | 537309, 537883, 539814, 648028, 654721, 654829 | Teledyne Continental O-470-B, B-CI, G | 2004-05-17 | current |
| Airmotive Engineering CORP | Piston 5.0 Dia., 8.6 1 comp. ratio AEC648029 | 627738, 648029, 654722, 654832 | Teledyne Continental O-470-T, U, IO-470-D | 2004-05-17 | current |
| Airmotive Engineering CORP | Piston 5.0 Dia., 7.1 1 comp. ratio AEC654729 | 534895, 649044, 654729, 654862 | Teledyne Continental E-165-2, 3, 4 | 2004-05-17 | current |
| Airmotive Engineering CORP | Piston 5.0 Dia., 7 1 comp. ratio AEC646263 | 535133, 646263, 654744, 654833 | Teledyne Continental O-470-4, 13, 13A | 2004-05-17 | current |
| Airmotive Engineering CORP | Piston 5.25-Dia. AEC654857 | Teledyne Continental 654857 | Teledyne Continental IO-550-A, B, B39 | 2001-10-21 | 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.