# SDR AU960726

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Cessna 402B
- Registry model: [Cessna 402B](https://openairdocs.org/model/cessna-402b) (OpenAirDocs)
- Engine: Cont TSIO520E
- Propeller: Mcauly 3AF32C87
- System (JASC): [8550 · Reciprocating Engine Oil System](https://openairdocs.org/jasc/8550)
- Part: Spring
- Condition: Wrong Part
- Location: R Engine Int Oil
- Component: Cont
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU960726

## Discrepancy

(AUS) ENGINE OIL PRESSURE RELIEF VALVE SPRING WAS AN INCORRECT PART -  FOUND DURING POST INSTALLATION GROUND RUN - ENGINE WAS A FACTORY REMANUFACTURED ENGINE - PERSONNEL/MAINTENANCE ERROR - UNAPPROVED PART

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