# SDR TWRA9780

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N604FF](https://openairdocs.org/aircraft/N604FF), registered now
- Make and model: Boeing 747121
- Aircraft serial: 19659
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Fuel Valve
- Part number: 40884
- Condition: Leaking
- Location: Nr 3 Fuel Tank
- Stage of operation: CR
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWRA9780

## Discrepancy

NR 3 MAIN FULE TANK INDICATES AN INCREASE OF 4200 LBS PER HOUR.  REPLACED NR 3 MAIN FUEL VALVE AND LEFT PUMP DISCHARGE CHECK VALVE.  REPLACED I/B FILL VALVE AND FLAPPER IN I/B PUMP CHECK VALVE.  (M)

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