# SDR ASAA0956151

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2009
- Submitted: July 9, 2009
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 9,013 hours, 2,612 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Starter Gen
- Part number: 28B5457
- Part serial: 126B0710
- Condition: Failed
- Location: Apu
- Part time: 9,013 hours, 2,612 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA0956151

## Discrepancy

APU FAULT LIGHT ILLUMINATED WHEN TRYING TO START APU.  REPLACED APU STARTER/GENERATOR REF MM 49 41 21, OPS NORMAL.

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