# SDR UALA2012080304149

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2012
- Submitted: August 10, 2012
- Operation: Air carrier
- Aircraft: [N485UA](https://openairdocs.org/aircraft/N485UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1617
- Aircraft time: 35,313 hours, 15,438 cycles
- Engine: Iae V2527A5
- System (JASC): [2697 · Fire Protection System Wiring](https://openairdocs.org/jasc/2697)
- Part: Circuit Breaker
- Condition: Tripped
- Location: Fire Loop
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012080304149

## Discrepancy

APU FIRE LOOP B FAULT, CIRCUIT BREAKER L44 APU FIRE AND OVERHEAT DET LOOP B FOUND TRIPPED.  VERIFIED ON ASM 26-13-01 THAT CIRCUIT IS ISOLATED, CIRCUIT BREAKER PULLED AND CAPPED.  GROUND CHECKED NORMAL REF AMM TASK 26-22-00-710-001.

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