# SDR ABXA9701418

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N850AX](https://openairdocs.org/aircraft/N850AX), registered now
- Make and model: Doug DC-8-61
- Registry model: [Doug DC-8-61](https://openairdocs.org/model/douglas-dc-8-61) (OpenAirDocs)
- Aircraft serial: 45894
- Engine: Pwa JT3D3B
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Relief Valve
- Part number: 581167
- Condition: Defective
- Location: Nr 4 Engine
- Stage of operation: AP
- Nature of condition: N
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA9701418

## Discrepancy

ON APPROACH NR 4 ENGINE OIL PRESSURE WAS 30 PSI WITH LOW OIL PRESSURE LIGHT\NON.  SHUT DOWN NR 4 ENGINE.  WINDMILLING OIL PRESSURE WAS 3 PSI AT 20 PERCENT N2.  ENGINE WINDMILLED WITH OIL PRESSURE BELOW 8 PSI FOR 8 MINUTES.  REPLACED NR 4 ENGINE OIL PRESSURE RELIEF VALVE IAW PRATT-WHITNEY MM 72-00.  OPS AND LEAK CHECKED GOOD.

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