# SDR YAAA2015F00071

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 2015
- Submitted: May 30, 2015
- Operation: Air carrier
- Aircraft: [N207JP](https://openairdocs.org/aircraft/N207JP), registered now
- Make and model: Cessna 207
- Registry model: [Cessna 207](https://openairdocs.org/model/cessna-207) (OpenAirDocs)
- Aircraft serial: 20700255
- Aircraft time: 15,691 hours
- Engine: Cont IO520F
- Engine time: 4,473 hours
- Propeller: Hartzl PHCC3YF1
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Head
- Part number: 654961C
- Part serial: 117762
- Condition: Cracked
- Location: Engine
- Part time: 1,185 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/YAAA2015F00071

## Discrepancy

DURING 100 HOUR INSPECTION, BOROSCOPING ENGINE, FOUND NR 2 CYLINDER CRACKED FROM SPARKPLUG BOSS PROCEEDING TO CYLINDER WALL.

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