# SDR ASAA2014112609779

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 26, 2014
- Submitted: December 2, 2014
- Operation: Air carrier
- Aircraft: [N531AS](https://openairdocs.org/aircraft/N531AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35199
- Aircraft time: 17,862 hours, 5,436 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Condition: Malfunctioned
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2014112609779

## Discrepancy

FIRST START AT FL 360 = FAULT LIGHT ILLUMINATED, EXTINGUISHED IN 30 SECONDS.  SECOND START AT FL 360, FAULT LIGHT ILLUMINATED, EXTINGUISHED  IN 5 + MINUTES.  ACFT GROUNDED.  FAULT HISTORY LOGGED MAINT MESSAGE 49-31016 OVERTEMP SHUTDOWN 2 CYCLES.  COMPLETED FIM TASK 49-30, TASK 803.  NO DEFECTS NOTED, NO FAULTS CURRENT STATUS.  APU STARTS AND OPS CHECKED NORMAL AT GATE.

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