# SDR QXEA2010092200550

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2010
- Submitted: September 22, 2010
- Operation: Air carrier
- Aircraft: N421QX
- Make and model: Bombdr DHC8402
- Aircraft serial: 4149
- Aircraft time: 9,149 hours, 9,813 cycles
- Engine: Pwc PW150A
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Engine
- Condition: Failed
- Location: Apu
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA2010092200550

## Discrepancy

APU FAILED ON START, RAMP REPORTED SMOKE FROM APU EXHAUST, APU L3 SOV C/B POPPED. PLACED APU ON MEL 49-00-1. RETURNED TO SERVICE.

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