# SDR UALA2012040302077

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2012
- Submitted: April 5, 2012
- Operation: Air carrier
- Aircraft: [N797UA](https://openairdocs.org/aircraft/N797UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26924
- Aircraft time: 63,105 hours, 8,886 cycles
- Engine: Pwa PW40903
- System (JASC): [2823 · Fuel Selector/Shut-Off Valve](https://openairdocs.org/jasc/2823)
- Part: Shutoff Valve
- Condition: Faulty
- Location: Rt Fuel Tank
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012040302077

## Discrepancy

RECEIVED FUEL IMBALANCE MESSAGE, ABOUT 7 HRS INTO FLT (MAIN TANKS) TEXT FROM LOGS 5-7: BALANCED AT TAKEOFF.  JUST BEFORE CENTER TANK EMPTY.  RT MAIN HAD INCREASED 2000 LBS TO ABOUT 65.6. OVER THE NEXT 3 HRS THE RT TANK CONTINUED TO GAIN ON THE IMBALANCE UNTIL BALANCED.  REPLACED RT MAIN FUEL TANK FLOAT OPERATED SHUTOFF VALVE.

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