# SDR 2025FA0000110

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2025
- Submitted: February 17, 2025
- Operation: General aviation
- Aircraft: [N175US](https://openairdocs.org/aircraft/N175US), registered now
- Make and model: Cirrus SR22
- Registry model: [Cirrus SR22](https://openairdocs.org/model/cirrus-design-sr22) (OpenAirDocs)
- Aircraft serial: 0570
- Aircraft time: 3,517 hours, 3,517 cycles
- Engine: Cont IO550*
- Engine time: 2,153 hours, 2,153 cycles
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Piston
- Part number: 654726
- Condition: Failed
- Location: Nr 3
- Part time: 2,153 hours, 2,153 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2025FA0000110

## Discrepancy

ENGINE SEIZED UP ON RUN UP. PISTON IN # 3 CYLINDER BROKE INTO TWO PARTS AT THE PISTON PIN BORE.  CYLINDER ASSEMBLY P/N 658815A1 PISTON P/N 654726.

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