# SDR UALA2010010700096

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2010
- Submitted: February 4, 2010
- Operation: Air carrier
- Aircraft: [N777UA](https://openairdocs.org/aircraft/N777UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26916
- Aircraft time: 59,186 hours, 11,067 cycles
- Engine: Pwa PW4077
- System (JASC): [4930 · APU Engine Fuel and Control](https://openairdocs.org/jasc/4930)
- Part: Shutoff Valve
- Part number: S343T00343
- Part serial: P48559
- Condition: Leaking
- Location: Apu Fuel
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010010700096

## Discrepancy

FUEL DRIPPING FROM UNDERSIDE OF LT WING ROOT. APU SHUT OFF VALVE (LOCATED LT WING ROOT AFT SPAR) HAS A SEVERE FUEL LEAK WHEN VALVE IS OPEN AND DC FUEL PUMP IS ENERGIZED. REPLACED APU FUEL VALVE AND SEALS. INSTALLED ACTUATOR AND SAFETIED.

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