# SDR 9513586636

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N636US](https://openairdocs.org/aircraft/N636US), registered now
- Make and model: Boeing 747251B
- Aircraft serial: 23547
- Engine: Pwa JT9D7R4G2
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Failed
- Location: Nr 4
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9513586636

## Discrepancy

EN ROUTE JFK-NRT, THE NR 4 ENGINE OIL PRESSURE WENT TO ZERO AND OIL QUANTITY PEGGED OFF SCALE.  CREW FOLLOWED COCKPIT OPERATING MANUAL, SHUTDOWN NR 4 ENGINE AND DIVERTED TO MSP WITHOUT FURTHER INCIDENTS.  MAINTENANCE REPLACED THE ENGINE AND TEST WAS NORMAL.

---
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.