# SDR 2011FA0000590

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 14, 2011
- Submitted: September 14, 2011
- Operation: General aviation
- Aircraft: [N434TB](https://openairdocs.org/aircraft/N434TB), registered now
- Make and model: Cirrus SR22
- Registry model: [Cirrus SR22](https://openairdocs.org/model/cirrus-design-sr22) (OpenAirDocs)
- Aircraft serial: 0290
- Aircraft time: 1,928 hours
- Engine: Cont IO550N
- Engine time: 1,928 hours
- Propeller: Hartzl PHCJ3YF1
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Head
- Part number: 655465A5
- Condition: Cracked
- Location: Engine
- Part time: 1,928 hours
- Component: Engine, Cont, IO550N
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2011FA0000590

## Discrepancy

DURING INSP OF ENGINE WHILE TROUBLESHOOTING A NR 2 ALTERNATOR PROBLEM, FOUND EACH ENGINE CYL (6 EA) WITH CRACKS FROM FUEL INJECTION NOZZLE BOSS TO SPARK PLUG HOLE BOSS. COMFIRMED CRACKS BY EDDY CURRENT.

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