# SDR ASAA2013110496297

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 4, 2013
- Submitted: November 6, 2013
- Operation: Air carrier
- Aircraft: [N587AS](https://openairdocs.org/aircraft/N587AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35684
- Aircraft time: 23,464 hours, 6,898 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Warning Message
- Condition: False Activation
- Location: Apu
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013110496297

## Discrepancy

APU BITE TEST INOPERATIVE, CHECK APU OR ECU INTERFACE MESSAGE DISPLAYED ON CDU.  ACFT GROUNDED.  CYCLED ACFT POWER, APU BITE BACK TO NORMAL.  ACCOMPLISHED APU CURRENT STATUS CHECK & NO FAULTS IN HISTORY.  CHECKED NORMAL IAW 49-61-00.  NO HISTORY 30 DAYS & SEAM C.

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