# SDR SRAA961118

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N873SJ
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46091
- System (JASC): [7931 · Engine Oil Pressure](https://openairdocs.org/jasc/7931)
- Part: Switch
- Part number: 12584
- Condition: Defective
- Location: Nr 4 Engine
- Stage of operation: CL
- Nature of condition: N
- Precautionary procedure: A, E, J
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SRAA961118

## Discrepancy

ON CLIMB-OUT OF SHANHAI ON FLIGHT 7875, NR 4 ENGINE OIL PRESSURE LIGHT CAME ON.  SHUT DOWN NR 4 ENGINE AS PRECAUTIONARY, DUMPED FUEL AND LANDED AT HKG WITHOUT INCIDENT.  INSPECTED OIL FILTER, NO CONTAMINATION FOUND, SUSPECT OIL PRESSURE DIFFERENTIAL SWITCH AT FAULT, DEFERRED SWITCH PER MEL 79-7.  UNIT WAS REPLACED AT SIN, SYSTEM OPS CHECKED GOOD PER M.M. CH 79.

---
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.