# SDR RAIA2009062200002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 17, 2009
- Submitted: June 22, 2009
- Operation: Air carrier
- Aircraft: N807HK
- Make and model: Emb EMB-145EP
- Registry model: [EMB EMB-145EP](https://openairdocs.org/model/embraer-emb-145ep) (OpenAirDocs)
- Aircraft serial: 145119
- Aircraft time: 22,818 hours, 21,482 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Turbine
- Part number: 4501968D
- Part serial: E004341
- Condition: Failed
- Location: Apu
- Part time: 16,265 hours, 20,581 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: B, A
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/RAIA2009062200002

## Discrepancy

PRE FLIGHT CREW REPORTED THAT THE APU AUTO SHUTDOWN ON THE GROUND FOLLOWED BY AN ELECTRICAL BURNING SMELL IN THE COCKPIT AND CABIN.  RAMP WORKERS REPORTED A LARGE FIREBALL AND SMOKE COMING FROM THE APU EXHAUST CONE WHEN APU SHUTDOWN.  MAINTENANCE REMOVED AND REPLACED THE APU.

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