# SDR AALA202608101074

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2026
- Submitted: August 10, 2026
- Operation: Air carrier
- Aircraft: [N951XV](https://openairdocs.org/aircraft/N951XV), registered now
- Make and model: Airbus A321-253N
- Registry model: [Airbus A321-253N](https://openairdocs.org/model/airbus-a321-253n) (OpenAirDocs)
- Aircraft serial: 7639
- Aircraft time: 25,783 hours, 7,303 cycles
- System (JASC): [2840 · Fuel Indicating System](https://openairdocs.org/jasc/2840)
- Part: Valve
- Part number: FRH280002
- Condition: Defective
- Location: Zone 600
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202608101074

## Discrepancy

AIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED THAT AT FL 360 THERE WAS A FUEL IMBALANCE OF 3000 THOUSAND POUNDS DIFFERENCE FROM TANK 1 TO TANK 2 - MAINTENANCE REPLACED RIGHT WING AIR RELEASE VALVE 87QM PER AMM 28-21-41

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