# SDR 2012FA0000789

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2012
- Submitted: November 30, 2012
- Operation: General aviation
- Aircraft: [N268CD](https://openairdocs.org/aircraft/N268CD), registered now
- Make and model: Cirrus SR22
- Registry model: [Cirrus SR22](https://openairdocs.org/model/cirrus-design-sr22) (OpenAirDocs)
- Aircraft serial: 0436
- Engine: Cont IO550N
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Camshaft
- Condition: Broken
- Location: Engine
- Part time: 1,081 hours
- Stage of operation: IN
- How discovered: B
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2012FA0000789

## Discrepancy

AFTER ENGINE FAILURE.  REMOVED COWLING, PERFORMED VISUAL INSPECTION OF ENGINE, FOUND NR 3 EXHAUST VALVE PUSH-ROD TUBE HOUSING BROKEN AND PUSH-ROD BENT.  REMOVED TOP SPARK PLUGS, THEY APPEARED NORMAL.  COMPRESSION CHECK DETERMINED 3 & 5 AND 2 & 4 TO HAVE NO COMPRESSION.  INSPECTED ALL CYLINDERS WITH BOROSCOPE, FOUND NO VALVE MOVEMENT ON ALL CYLINDERS.  SUSPECT BROKEN CAMSHAFT.

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