# SDR 2013FA0000395

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2013
- Submitted: July 8, 2013
- Operation: General aviation
- Aircraft: N9456B
- Make and model: Cessna 175
- Registry model: [Cessna 175](https://openairdocs.org/model/cessna-175) (OpenAirDocs)
- Aircraft serial: 55256
- Engine: Cont GO300A
- Engine time: 2,645 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Head
- Part number: 6741917A11
- Condition: Cracked
- Location: Engine
- Part time: 2,645 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/2013FA0000395

## Discrepancy

WHILE PERFORMING A COMPRESSION TEST NR 5 CYLINDER HAD AN AIR LEAK, SPRAYED SOAPY SOLUTION ON CYLINDER AND OBSERVED BUBBLES COMING FROM A CRACK BETWEEN COOLING FINS BETWEEN THE VALVES, UNDER THE UPPER SPARK PLUG AND ANOTHER AREA AFT OF THE SPARK PLUG HOLE.

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