# SDR ABXA20260107007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2026
- Submitted: January 9, 2026
- Operation: Air carrier
- Aircraft: [N774AX](https://openairdocs.org/aircraft/N774AX), registered now
- Make and model: Boeing 767281
- Aircraft serial: 22789
- Aircraft time: 74,371 hours, 47,505 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Valve
- Part number: 408844
- Part serial: 1245
- Condition: Defective
- Location: Zone 200
- Part time: 69,395 hours, 400 cycles
- 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/ABXA20260107007

## Discrepancy

DURING CRUISE, EXCESSIVE FUEL MIGRATION FROM THE LEFT MAIN TO THE CENTER FUEL TANK.  REMOVED AND REPLACED FUELING SHUT-OFF VALVE IAW 28-21-02.  REMOVED AND REPLACED VALVE CONTROL UNIT IAW 28-21-12.  PERFORMED OPS CHECK AND LEAK CHECK IAW 28-11-00.  NO DEFECTS NOTED.  AIRCRAFT RETURNED TO SERVICE.

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