# SDR 2011FA0000272

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 2011
- Submitted: April 29, 2011
- Operation: General aviation
- Aircraft: [N84PL](https://openairdocs.org/aircraft/N84PL), registered now
- Make and model: Amtr LANCAIR4P
- Aircraft serial: LIV084
- Engine: Cont TSIO550B
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Head
- Part number: 653119A1
- Condition: Cracked
- Location: Engine
- Part time: 550 hours
- 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/2011FA0000272

## Discrepancy

WHILE PERFORMING A CONDITION INSPECTION ON THE ENGINE, A CRACK WAS FOUND IN THE AREA OF THE INTAKE VALVE ON NR 6 CYLINDER.  CYLINDER AND PISTON ARE ORIGINAL TO THE ENGINE.    CAUSE OF MALFUNCTION, UNKNOWN.

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