# SDR ASAA2016031315891

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2016
- Submitted: March 15, 2016
- Operation: Air carrier
- Aircraft: [N513AS](https://openairdocs.org/aircraft/N513AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35192
- Aircraft time: 28,806 hours, 8,694 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Starter Gen
- Part number: 28B5459STYLEA
- Part serial: 57B0871
- Condition: Failed
- Location: Apu
- Part time: 5,133 hours, 7,895 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016031315891

## Discrepancy

APU START-GEN UNIT FAILED OPS TEST.  WOULD NOT COME ONLINE, FEEDER FAULT.  ACFT GROUNDED.  R & R APU STARTER-GENERATOR UNIT IAW AMM 49-41-21.  LEAK AND OPS TEST GOOD.

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