# SDR ASAA2015112413993

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 24, 2015
- Submitted: December 1, 2015
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 29,589 hours, 9,117 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Exciter
- Part number: 38880587
- Part serial: 100055
- Condition: Failed
- Location: Apu
- Part time: 5,201 hours, 8,096 cycles
- Stage of operation: NR
- 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/ASAA2015112413993

## Discrepancy

APU FAULT LIGHT ON TWO ATTEMPTS.  ACFT GROUNDED.  REPLACED IGNITION UNIT REF AMM 49-41-31-000-801 AS WELL AS IGNITER PLUG, REF AMM 49-41-51.

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