# SDR ASAA2017092422035

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2017
- Submitted: September 26, 2017
- Operation: Air carrier
- Aircraft: [N461AS](https://openairdocs.org/aircraft/N461AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36363
- Aircraft time: 14,119 hours, 4,627 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Unknown
- Condition: Unknown
- Location: Apu Electrical
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017092422035

## Discrepancy

APU ELECTRICAL POWER WILL NOT CONNECT (EITHER SIDE). AC VOLTS ZERO, FREQUENCY ZERO.  ACFT GROUNDED.  STARTED APU,  VOLTS & FREQUENCIES SHOWED ZERO BUT ONCE PLACED ONLINE, VOLT & FREQUENCIES SHOWED NORMAL OUTPUT AND HOLDS THE BUSS. CYCLED POWER MULTIPLE TIMES. OPS CHECKED NORMAL.

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