# SDR VNAA0212026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2002
- Submitted: December 31, 2002
- Operation: Air carrier
- Aircraft: N422JS
- Make and model: Dorner DO328100
- Aircraft serial: 3018
- Aircraft time: 18,966 hours, 16,555 cycles
- Engine: Pwa PW119B
- Propeller: Hartzl HDE6C3B
- System (JASC): [7923 · Engine Oil Shutoff Valve](https://openairdocs.org/jasc/7923)
- Part: Shim
- Condition: Defective
- Location: Left
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA0212026

## Discrepancy

THE CREW RECEIVED A LEFT HAND OIL PRESSURE CAS MESSAGE IN THE AMBER RANGE AND CALLED MAINTENANCE CONTROL.  FLIGHT 4056 WAS THEN INSTRUCTED TO RETURN TO CAK.  MAINTENANCE INSPECTED AND REMOVED A OIL PRESSURE REGULATOR SHIM IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 79-00-00.  OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

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