# SDR ASAA2014032407312

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2014
- Submitted: March 26, 2014
- Operation: Air carrier
- Aircraft: [N442AS](https://openairdocs.org/aircraft/N442AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43293
- Aircraft time: 1,209 hours, 383 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Exciter
- Part number: 38880587
- Part serial: 131260
- Condition: Failed
- Location: Apu
- Part time: 327 hours, 615 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2014032407312

## Discrepancy

APU WILL NOT START.  ACFT GROUNDED.  R & R THE APU EXCITER AND IGNITER PLUG IAW AMM 49-41-31 AND 49-41-51.  OPS CHECK GOOD.

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