# SDR UALA2008111300951

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 2008
- Submitted: January 16, 2009
- Operation: Air carrier
- Aircraft: [N773UA](https://openairdocs.org/aircraft/N773UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26929
- Aircraft time: 50,461 hours, 10,384 cycles
- Engine: Pwa PW4077
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Controller
- Part number: 40885
- Condition: Faulty
- Location: Center Tank
- Stage of operation: IN
- How discovered: O
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2008111300951

## Discrepancy

FUEL LEAK DETECTED FROM DRAIN MAST BETWEEN MLG DOORS.  REPLACED SEALS ON ALL FIVE GAMMA COUPLINGS ON FWD TRANSFER TUBE IN CENTER TANK DRY BAY.  REPLACED FUEL VALVE CONTROLLER, OPS AND LEAK CHECKED OK.  REPLACED APU FUEL FEED LINE GAMMA COUPLING O-RINGS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.