# SDR MROA20102

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 26, 2010
- Submitted: November 26, 2010
- Operation: Air carrier
- Aircraft: [N42801](https://openairdocs.org/aircraft/N42801), registered now
- Make and model: Cessna 182L
- Registry model: [Cessna 182L](https://openairdocs.org/model/cessna-182l) (OpenAirDocs)
- Aircraft serial: 18259195
- Aircraft time: 5,275 hours
- Engine: Cont O470R
- Engine time: 1,038 hours
- Propeller: Mcauly 2A34C66
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: 655467
- Part serial: AC04GC028
- Condition: Leaking
- Location: Engine
- Part time: 1,038 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/MROA20102

## Discrepancy

ROUTINE DIFFERENTIAL COMPRESSION TEST RESULTING IN A 48/80 READING WAS CAUSED BY A LEAKING EXHAUST VALVE.  THE CYLINDER ASSY WAS R & R WITH A NEW CYLINDER ASSY.

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