# SDR 2025FA0000352

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 2024
- Submitted: May 13, 2025
- Operation: General aviation
- Aircraft: [N9839K](https://openairdocs.org/aircraft/N9839K), registered now
- Make and model: Piper PA-28-161
- Registry model: [Piper PA-28-161](https://openairdocs.org/model/piper-pa-28-161) (OpenAirDocs)
- Aircraft serial: 287816198
- Aircraft time: 4,459 hours
- Engine: Lyc O360*
- Engine time: 186 hours
- Propeller: Mtprop MTV6A
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Head
- Condition: Cracked
- Location: Engine
- Part time: 186 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/2025FA0000352

## Discrepancy

FAILURE OF CYLINDER HEAD ALLOWING COOLANT TO ENTER THE CYLINDERS AND CRANKCASE.  NO PRIOR WARNING FROM FADEC CONTROL AND WARNING SYSTEM.

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