# SDR ASAA2013081795827

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2013
- Submitted: August 20, 2013
- Operation: Air carrier
- Aircraft: [N564AS](https://openairdocs.org/aircraft/N564AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35103
- Aircraft time: 26,162 hours, 8,114 cycles
- System (JASC): [2432 · Battery/Charger System](https://openairdocs.org/jasc/2432)
- Part: Battery
- Part number: 024147000
- Part serial: 0905200078E27
- Condition: Discharged
- Location: Master
- Part time: 15,430 hours, 5,377 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013081795827

## Discrepancy

APU WILL NOT START FAULT LIGHT ILLUMINATED ON APU PANEL.  ACFT GROUNDED.  FOUND FAULT LIGHT ELEC PERFORMED BITE TEST IAW FIM 24-31, TASK 801.  FOUND STATIC INVERTER INOPERATIVE.  PERFORMED FIM TASK 24-34, TASK 801.  STATIC INVERTER FOUND TO HAVE LOW AC VOLTS ON TEST.  REPLACED FWD MAIN ACFT BATTERY IAW MM 24-31-11-400-802-002.  REPLACED AUX BATTERY IAW MM 24-31-11-400-802-002.  BOTH OPS CHECKED NORMAL IAW MM 24-31-11-400-802-002.  RESET ELECTRICAL FAULT REF FIM 24-31, TASK 801.  APU STARTS NORMAL REF MM 49-11-00-860-801.

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