# SDR ASAA2016102218449

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2016
- Submitted: October 24, 2016
- Operation: Air carrier
- Aircraft: [N487AS](https://openairdocs.org/aircraft/N487AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44108
- Aircraft time: 4,070 hours, 1,320 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Warning Light
- Condition: False Activation
- Location: Apu
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016102218449

## Discrepancy

APU FAULT LIGHT ILLUMINATED, FAULT CODE: 49-11019.  ACFT GROUNDED.  FAULT CODE 49-11019 DC POWER LOSS SHUTDOWN POWER INTERRUPTED. POWERED APU ON THEN NORMAL SHUTDOWN. CHECKED CDU APU "CURRENT STATUS" NO FAULTS FOUND. A/C OK FOR SERVICE IAW FIM 49-10 TASK 801.

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