# SDR 2018FA0000014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2017
- Submitted: January 10, 2018
- Operation: General aviation
- Aircraft: [N740U](https://openairdocs.org/aircraft/N740U), 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: 2842225
- Engine: Lyc O320D3G
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: LW12416
- Part serial: 114290
- Condition: Cracked
- Location: Engine
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2018FA0000014

## Discrepancy

THIS ENGINE CYLINDER DEVELOPED LOW COMPRESSION DURING FLIGHT, UPON INSPECTION, IT WAS DISCOVERED THE CYLINDER HEAD HAD A CRACK/HOLE NEAR THE INTAKE VALVE.

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