# SDR UPS07M48835

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 9, 2007
- Submitted: January 10, 2007
- Operation: Air carrier
- Aircraft: [N275UP](https://openairdocs.org/aircraft/N275UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48774
- System (JASC): [2170 · Humidity Control System](https://openairdocs.org/jasc/2170)
- Part: Coalescer Bag
- Part number: 20D103
- Condition: Dirty
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS07M48835

## Discrepancy

FUMES IN COCKPIT.  INSPECTED COCKPIT OVERHEAD AND MAIN C/B PNLS FOR BURNED WIRES, NO FAULTS  NOTED.  INSPECTED PACK INLETS, NO DEBRIS NOTED.  RAN ENG, FOUND SLIGHT FUMES FROM PACKS.  CLEANED COALESCER BAGS PER MM 21-54-05-2.  RAN ENG PERFORMED OPS TEST PER 21-53-00-7 FOR 30 MIN.  NO FUMES NOTED.

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