# SDR 2002FA0001154

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 27, 2002
- Submitted: September 27, 2002
- Operation: General aviation
- Aircraft: N575ER
- Make and model: Piper PA-44-180
- Registry model: [Piper PA-44-180](https://openairdocs.org/model/piper-pa-44-180) (OpenAirDocs)
- Aircraft serial: 4496151
- Aircraft time: 49 hours
- Engine: Lyc O360*
- Engine time: 49 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Valve Seat
- Part number: 72057
- Condition: Misrepaired
- Location: Engine
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2002FA0001154

## Discrepancy

DURING ROUTING COMPRESSION TEST FOUND NR 4 CYLINDER COMPRESSION LOW.  REMOVED CYLINDER AND FOUND THE INTAKE VALVE SEAT HAD BEEN INSTALLED AND GROUND CROOKED AT THE FACTORY.  SEAT REINSTALLED AND GROUND CORRECTLY AND REINSTALLED ON THE ENGINE.

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