# SDR USAA2012013100014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2012
- Submitted: February 21, 2012
- Operation: Air carrier
- Aircraft: [N625AW](https://openairdocs.org/aircraft/N625AW), registered now
- Make and model: Airbus A320-231
- Registry model: [Airbus A320-231](https://openairdocs.org/model/airbus-industrie-a320-231) (OpenAirDocs)
- Aircraft serial: 64
- Aircraft time: 70,397 hours, 31,568 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Unknown
- Condition: Fire
- Location: Apu
- Stage of operation: TX
- How discovered: O
- Nature of condition: A
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2012013100014

## Discrepancy

AS THE AIRCRAFT WAS IN LINE FOR TAKEOFF, THERE WAS REPORT OF AN APU FIRE FROM THE AIRCRAFT BEHIND US.  THE APU HAD BEEN SHUT OFF FOR ABOUT 3 MINUTES.  THE APU FIRE BOTTLE WAS DISCHARGED ALTHOUGH THERE WAS NEVER ANY FIRE INDICATION IN FLIGHT DECK.  FIRE DEPARTMENT RESPONDED AND CONFIRMED NO FLAMES - FOLLOWED AIRCRAFT BACK TO GATE.  VENDOR TEARDOWN REPORTS FOR APU FUEL CONTROL UNIT AND FUEL FLOW DIVIDER BOTH INDICATED 'NO FAULT FOUND'.  NO SUBSEQUENT EVENTS REPORTED ON THIS AIRCRAFT.

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