# SDR ASAA2012122593542

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 25, 2012
- Submitted: December 27, 2012
- Operation: Air carrier
- Aircraft: [N535AS](https://openairdocs.org/aircraft/N535AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35200
- Aircraft time: 7,421 hours, 2,213 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Condition: Unknown
- Stage of operation: TX
- 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/ASAA2012122593542

## Discrepancy

APU DID NOT START, FAULT LIGHT ILLUMUNATED ON GROUND.  PERFORMED FIM TASK 49-31-808 STEP F, FAULT CORRECTED.   STARTED APU 4 TIMES, OPERATED NORMAL.

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