# SDR 97UAL900233

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N171UA](https://openairdocs.org/aircraft/N171UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 24322
- Engine: Pwa PW4056
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Seal
- Part number: 70R606
- Condition: Missing
- Location: Nr 3 Gearbox
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97UAL900233

## Discrepancy

AIRCRAFT DIVERTED TO SEA DUE TO A NR 3 ENGINE OIL QUANTITY PROBLEM.   *S/D*  FUEL PUMP DRIVE PAD ON ENGINE ACCESSORY GEARBOX LEAKING OIL.  REPLACED GEARBOX DRIVE PAD CARBON SEAL, OPERATION CHECKS NORMAL.

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