# SDR 2018FA0000201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 29, 2018
- Submitted: July 2, 2018
- Operation: General aviation
- Aircraft: [N26794](https://openairdocs.org/aircraft/N26794), registered now
- Make and model: Amrgen AA5A
- Aircraft serial: AA5A0728
- Aircraft time: 9,487 hours
- Engine: Lyc O320*
- Engine time: 11,727 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: 05K21237A30
- Condition: Failed
- Location: Engine
- 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/2018FA0000201

## Discrepancy

DURING  A 100 HOUR INSPECTION,  DISCOVERED THAT CYLINDERS NR 1 AND 3 HAD COMPRESSIONS IN THE 20PSI RANGE. ATTEMPTS TO CORRECT THIS WERE NOT SUCCESSFUL. CYLINDERS NR 1 AND 3 WERE REPLACED.

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