# SDR ASAA1159176

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2011
- Submitted: March 9, 2011
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 11,247 hours, 3,604 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Condition: Shutdown
- Location: Apu Bay
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1159176

## Discrepancy

DURING APU INITIAL START.  LIGHT ILLUMINATED THEN APU SHUTDOWN.  PERFORMED APU BITE PROCEDURE FAULT CODE 49 31171 LOGGED.  PERFORMED MAINTENANCE TASK 49 31 00 810 808 PARAGRAPH F ( 1 ) APU OPS.  CHECK GOOD.  NO FAULTS NOTED.

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