# SDR ASAA0280573

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 14, 2002
- Submitted: December 27, 2002
- Operation: Air carrier
- Aircraft: [N953AS](https://openairdocs.org/aircraft/N953AS), registered now
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49386
- System (JASC): [2170 · Humidity Control System](https://openairdocs.org/jasc/2170)
- Part: Coalescer Bag
- Condition: Dirty
- Location: A/C Bay
- Stage of operation: DE
- 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/ASAA0280573

## Discrepancy

LAX - FOUND CABIN BEGAN TO FILL WITH FUMES/SMOKE WITH APU OPERATING ON DESCENT INTO LAX.  SHUTDOWN APU, AND FUMES/SMOKE DISSIPATED.  PERFORMED TASK CARD 28525011 DUCT CLEANING PROCEDURE AND REPLACED COALESCER BAGS.   NO APU DEFECTS FOUND.  OP CHECKED OK ON GROUND.  (M)

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