# SDR QXEA9800043

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N491US
- Make and model: Fokker F.28 MK4000
- Registry model: [Fokker F.28 MK4000](https://openairdocs.org/model/fokker-f-28-mk4000) (OpenAirDocs)
- Aircraft serial: 11156
- System (JASC): [2170 · Humidity Control System](https://openairdocs.org/jasc/2170)
- Part: Coalescer
- Condition: Dirty
- Location: Cabin
- Stage of operation: IN
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA9800043

## Discrepancy

SEA - AFTER APU START WITH AIR ON AND EITHER PACK ON, SMOKE FILLED CABIN.  REPLACED WATER SEPARATOR SOCKS.

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