# SDR UALA2009071402064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 13, 2009
- Submitted: July 16, 2009
- Operation: Air carrier
- Aircraft: [N777UA](https://openairdocs.org/aircraft/N777UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26916
- Aircraft time: 57,189 hours, 10,747 cycles
- Engine: Pwa PW4077
- System (JASC): [2842 · Fuel Quantity Sensor](https://openairdocs.org/jasc/2842)
- Part: Switch
- Part number: 0335KPU01
- Condition: Faulty
- Location: Fuel System
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009071402064

## Discrepancy

EXPANDED FUEL QTY DISPLAY WON'T GO AWAY WITH NORMAL CONFIG.  AHM REPORTING 'CENTER R FUEL PUMPS SWITCH IS FAILED'.  EXPANDED FUEL INDICATION WILL APPEAR IF FUEL IS IN CENTER TANK & CENTER TANK PUMPS ARE 'OFF' (OR ERRONEOUS INDICATION THAT PUMPS ARE 'OFF').  REPLACED RIGHT CENTER PUMP SWITCH.  TRANSFER FUEL IN AND OUT OF CENTER TANK.  OPS AND INDICATION NORMAL.

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