# SDR FQAR20170705063

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2017
- Submitted: July 5, 2017
- Operation: General aviation
- Filed by: [Bird Acquisition LLC., repair station FQAR173S](https://openairdocs.org/faa-repair-station/FQAR173S/bird-acquisition-llc.md) (OpenAirDocs)
- Aircraft: [N297PA](https://openairdocs.org/aircraft/N297PA), 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: 2843506
- Aircraft time: 17,999 hours
- Engine: Lyc O360A4M
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: LW12427
- Part serial: 11183222
- Condition: Damaged
- Location: Nr 1
- Part time: 2,620 hours
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FQAR20170705063

## Discrepancy

DURING A ROUTINE INSPECTION, A COMPRESSION TEST WAS PERFORMED. CYLINDER NR 1 DID NOT HOLD PRESSURE AND A LOUD HISSING WAS HEARD FROM THE VICINITY OF CYLINDER HEAD. CYLINDER WAS REMOVED AND A SMALL HOLE WAS OBSERVED IN CYLINDER HEAD BETWEEN FINS, THE HOLE WAS NOT VISIBLE WHEN INSTALLED ON ENGINE BECAUSE OF HOLES LOCATION IMMEDIATELY ADJACENT TO THE NR 3 CYLINDER HEAD. NO ROUGHNESS OR POWER LOSS WAS REPORTED WHEN AIRCRAFT WAS GROUND RUN PRIOR TO INSPECTION.

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