# SDR 2025FA0000010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 8, 2025
- Submitted: January 8, 2025
- Operation: General aviation
- Aircraft: [N220AM](https://openairdocs.org/aircraft/N220AM), registered now
- Make and model: Cirrus SR22
- Registry model: [Cirrus SR22](https://openairdocs.org/model/cirrus-design-sr22) (OpenAirDocs)
- Aircraft serial: 3635
- Aircraft time: 672 hours
- Engine: Cont IO550N
- Engine time: 672 hours
- Propeller: Hartzl PHCJ3YF1
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Head
- Part number: 655932A3
- Part serial: NA
- Condition: Burned
- Location: Nr 5 Cy
- Part time: 672 hours
- Component: Engine, Cont, IO550N
- Component part number: IO550N61
- Stage of operation: CL
- How discovered: C
- Nature of condition: R
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2025FA0000010

## Discrepancy

ENGINE COMPRESSION CHECK CYLINDER #5 WAS 10/80 PSI. REMOVED CYLINDER, PISTON WAS BURNED BADLY AROUND THE OUTSIDE EDGES. TOP SPARK PLUG PORCELAIN WAS BROKEN AND DAMAGED.

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