# SDR SIMA200402301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2004
- Submitted: February 12, 2004
- Operation: Air carrier
- Aircraft: [N646AE](https://openairdocs.org/aircraft/N646AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145213
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Apu
- Condition: Contaminated
- 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/SIMA200402301

## Discrepancy

PIT- FLT 4153 - CRWE REPORTED WITH APU RUNNING AND MAINTEANCE ON BOARD THE CABIN AND COCKPIT FILLED WITH SMOKE.  CREW SAID IT SEEMED TO BE COMING FROM THE NR 2 PACK.  MAINTENANCE RAN THE NR 2 PACK WITH THE APU AND FOUND NO ODOR.  SUSPECT ANTI-ICE FLUID ENTERED THE APU BLEED SYSTEM.  COULD NOT DUPLICATE DISCREPANCY AND AIRCRAFT WAS RETURNED TO SERVICE.  (M)

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