# SDR UPS97222032

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 13, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N904UP](https://openairdocs.org/aircraft/N904UP), registered now
- Make and model: Boeing 727-51C
- Registry model: [Boeing 727-51C](https://openairdocs.org/model/boeing-727-51c) (OpenAirDocs)
- Aircraft serial: 18946
- System (JASC): [2170 · Humidity Control System](https://openairdocs.org/jasc/2170)
- Part: Coalascer Bag
- Condition: Dirty
- Location: Cabin
- Stage of operation: CL
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS97222032

## Discrepancy

ON TAKEOFF, NOTICED A STRONG ODOR.  RAN AIRCONDITIONING SMOKE CHECKLIST, ODOR DID NOT DECREASE.  RETURNED TO IAD.  PERFORMED TAKEOFF POWER CK PER MM 71-00-58.  NO ODOR NOTICED, CHANGED WATER SEPARATOR BAGS LT/RT PACK.  NO OIL FOUND IN DUCTS, OLD BAGS IN GOOD SHAPE.  ALL PACK INTAKES CLEAR.  UNABLE TO DUPLICATE.

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