# SDR A3W2008F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 27, 2008
- Submitted: July 18, 2008
- Operation: Air carrier
- Aircraft: [N121EE](https://openairdocs.org/aircraft/N121EE), registered now
- Make and model: Cessna A185F
- Registry model: [Cessna A185F](https://openairdocs.org/model/cessna-a185f) (OpenAirDocs)
- Aircraft serial: 18503765
- Engine: Cont IO520D
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Piston
- Part number: SA631475
- Condition: Broken
- Location: Engine
- Part time: 1,185 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/A3W2008F00000

## Discrepancy

AT OIL CHANGE, FOUND ALUMINUM CONTAMINATION IN OIL FILTER ELEMENT.  INVESTIGATION FOUND BROKEN PISTON SKIRT AND RING PARTS IN OIL PAN FROM NR 4 CYLINDER.  NR 4 PISTON SKIRT WAS BROKEN AT LOWEST RING, AT BOTTOM OF PISTON HALF, TOTAL SKIRT WAS BROKEN OFF THIS PISTON , FOUND 5/27/2008.  (K)

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