# SDR ASAA2015082612925

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2015
- Submitted: August 31, 2015
- Operation: Air carrier
- Aircraft: [N581AS](https://openairdocs.org/aircraft/N581AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35188
- Aircraft time: 31,901 hours, 9,712 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Condition: False Indication
- Location: Apu
- Stage of operation: NR
- 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/ASAA2015082612925

## Discrepancy

WITH APU RUNNING, APU GEN DISPLAYS ZERO VOLTS & FREQUENCY.  ACFT GROUNDED. RAN BITE ON APU GCU, GREEN PASS LIGHT IAW MM 24-21-81. APU GENERATOR OPS TEST NORMAL IAW MM 24-21-00, ALL INDICATIONS NORMAL.  GROUND VERIFICATION SUCCESSFUL.

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