# SDR ASAA2012092192928

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2012
- Submitted: September 25, 2012
- Operation: Air carrier
- Aircraft: [N512AS](https://openairdocs.org/aircraft/N512AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39043
- Aircraft time: 15,595 hours, 4,943 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Condition: Malfunctioned
- Stage of operation: CR
- 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/ASAA2012092192928

## Discrepancy

APU COLD SOAKED START FAILED FIRST ATTEMPT AT FL370 BECAUSE FAULT LIGHT CAME ON. SECOND ATTEMPT SUCCESSFUL.  PERFORMED FIM TASK 49-60-00-810-801AND AMM 49-11-00-710-801.  ALL TESTS PASSED.  NO FAULTS INDICATED.

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