# SDR ASAA2017071621389

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 2017
- Submitted: July 18, 2017
- Operation: Air carrier
- Aircraft: [N512AS](https://openairdocs.org/aircraft/N512AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39043
- Aircraft time: 34,411 hours, 10,398 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Fault Light
- Condition: False Activation
- Location: Apu
- Stage of operation: NR
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017071621389

## Discrepancy

ON APU START, THE APU AMBER FAULT LIGHT ILLUMINATED, WITH NO START FAULT MESSAGE 49-15004.   INLET DOOR SHUTDOWN.   ACFT GROUNDED.  PERFORMED MULTIPLE SUCCESSFUL GROUND STARTS IAW AMM 49-11-00-710-801. DURING OPERATION, NO FAILURES FOUND IN CURRENT STATUS OF APU BITE IAW FIM 49-60 TASK 801.

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