# SDR ASAA1058587

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2010
- Submitted: December 6, 2010
- Operation: Air carrier
- Aircraft: [N597AS](https://openairdocs.org/aircraft/N597AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35689
- Aircraft time: 9,923 hours, 3,246 cycles
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Unknown
- Condition: Malfunctioned
- Location: Electrical Sys
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1058587

## Discrepancy

APU ELECTRICS DROPPED OFF LINE 2 TIMES.  GVI ON APU NO DEFECT FOUND.  APU GCU LRU TEST PASSED.  APU BITE NO CURRENT FAULT NO RELATED FAULT FOUND ON FAULT HISTORY & NO HISTORY IN TRAX.  PERFORMED OPERATIONAL TEST FOR AC GENERATION & CONTROL SYSTEM REF MM 24 21 00 700 803 STEP E, OPS NORMAL.

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