# SDR M7JA20150319001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2015
- Submitted: March 19, 2015
- Operation: Air carrier
- Aircraft: [N72053](https://openairdocs.org/aircraft/N72053), registered now
- Make and model: Cessna 402B
- Registry model: [Cessna 402B](https://openairdocs.org/model/cessna-402b) (OpenAirDocs)
- Aircraft serial: 0587
- Aircraft time: 5,476 hours
- Engine: Cont TSIO520E
- Engine time: 50 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Piston
- Condition: Eroded
- Location: Engine
- Part time: 50 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/M7JA20150319001

## Discrepancy

PISTON PARTIALLY ERODED, FROZEN RING D, ONE LUBRICATION HOLE IN ONE RING GLANDS, ALUMINUM POWDER CONTAMINATION THROUGH THE ENG & FILTER.

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