# SDR AUS20040360

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2004
- Submitted: July 22, 2004
- Operation: General aviation
- Make and model: Cessna 310R
- Registry model: [Cessna 310R](https://openairdocs.org/model/cessna-310r) (OpenAirDocs)
- Engine: Cont IO520M
- Propeller: Mcauly 3AF32C87
- System (JASC): [8550 · Reciprocating Engine Oil System](https://openairdocs.org/jasc/8550)
- Part: Oil System
- Part number: IO520MB
- Condition: Contaminated
- Location: Engine
- Stage of operation: DE
- How discovered: O
- Nature of condition: E, K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AUS20040360

## Discrepancy

(AUS) METAL CONTAMINATION OF RT ENGINE OIL SYSTEM.  THREE PIECES OF 0.812 MM (0.032IN) LOCKWIRE FOUND IN OIL FILTER.  TWO MORE PIECES OF LOCKWIRE FOUND IN OIL PRESSURE RELIEF VALVE.  ENGINE HAD 6 HOURS OPERATION SINCE OVERHAUL. PERSONNEL/MAINTENANCE ERROR.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.