# SDR AALA201511099009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 6, 2015
- Submitted: November 11, 2015
- Operation: Air carrier
- Aircraft: [N521UW](https://openairdocs.org/aircraft/N521UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 3944
- Aircraft time: 23,636 hours, 8,205 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Transfer Valve
- Condition: Malfunctioned
- Location: Fuel Sys
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201511099009

## Discrepancy

DIVERTED, AUXILIARY FUEL TANK TRANSFER, ACT, VALVE FAULT OCCURRED DURING THE FLIGHT.   AN EMERGENCY WAS DECLARED.  THE ACFT LANDED WITHOUT INCIDENT.  ACCOMPLISHED A TEST OF THE ACT AUTO TRANSFER SYS IAW AMM 28-28-00 & NO DEFECTS WERE NOTED.

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