# SDR TWRA97164

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N620FF
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21162
- Engine: Pwa JT9D7J
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Fitting
- Condition: Failed
- Location: Nr 1 Gearbox
- Stage of operation: CR
- Nature of condition: K, J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWRA97164

## Discrepancy

DURING CRUISE, NR 1 ENGINE OIL PRESSURE FLUCTUATED AND DROPPED BELOW YELLOW BAND.  OIL PRESSURE LIGHT ON AT PILOT'S PANEL.  ENGINE FAILURE CHECK LIST ACCOMPLISHED.  ENGINE SHUT DOWN ON FINAL APPROACH.  ENGINE OIL PRESSURE 7 PSI.  FLIGHT DIVERTED TO JFK.  MAINTENANCE FOUND BREATHER PRESS PORT FITTING AT MAIN GEARBOX LIBERATED DUE TO FAILED THREADS.  INSTALLED BUSHING AND PLUG PER EA 72-075.  REMOVED AND REPLACED  MAIN OIL SCREEN PER MM 72-61-05.  RAN ENGINE.  OPS CHECKED NORMAL.  AIRCRAFT RETURNED TO SERVICE.  (X)

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