# SDR CALA2025020302188

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 3, 2025
- Submitted: February 4, 2025
- Operation: Air carrier
- Aircraft: [N37253](https://openairdocs.org/aircraft/N37253), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30584
- Aircraft time: 74,785 hours, 27,665 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Condition: Contaminated
- Location: Zone 100
- Stage of operation: NR
- How discovered: O
- Nature of condition: C, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025020302188

## Discrepancy

SMOKE AND FUMES BEGAN ENTERING CABIN FROM WE SUSPECT DEICERS HIT APU INLET ACP CONDITIONAL INSP FOR SMOKE AND ODER IN CABIN REF AMM 05-51-26. SMALL AMOUNT OF ODOR FELT BY CREW. ACP PACK BURN OUT REF AMM21-00-21. NO ODOR OR FUMES NOTTED.

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