# SDR FQAR20151230104

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 30, 2015
- Submitted: January 4, 2016
- Operation: General aviation
- Aircraft: [N419PA](https://openairdocs.org/aircraft/N419PA), registered now
- Make and model: Piper PA-28-181
- Registry model: [Piper PA-28-181](https://openairdocs.org/model/piper-pa-28-181) (OpenAirDocs)
- Aircraft serial: 2843413
- Aircraft time: 17,750 hours
- Engine: Lyc O360A4M
- Engine time: 2,135 hours
- Propeller: Snsnch 76EM8
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Head
- Part number: SL36006W20AP
- Part serial: 366WA1416200
- Condition: Separated
- Location: Zone 200
- Part time: 2,135 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: R, E
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FQAR20151230104

## Discrepancy

DURING CRUISE FLIGHT, THE PILOTS NOTED A LOSS OF ENGINE POWER, ACCOMPANIED BY ABNORMAL ENGINE SOUNDS AND A BURNING ODOR. THEY DIVERTED TO ANOTHER AIRPORT. VISUAL INSPECTION OF THE ENGINE REVEALED THE NR 1 CYLINDER HEAD WAS IN THE PROCESS OF SEPARATING FROM THE BARREL AND ESCAPING COMBUSTION GASSES HAD BURNED HOLES IN THE CYLINDER BAFFLE AND ADJACENT COMPONENTS.  THE ENGINE HAD LAST UNDERGONE A DETAILED INSPECTION 7.3 HOURS PRIOR; A COMPRESSION TEST WAS 70/80 AND NO DEFECTS WERE FOUND AT THAT TIME. THE CYLINDER HEAD CASTING NR WAS C-03354.

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