# SDR TWAA9816102

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N936L
- Make and model: Doug DC-9-34
- Registry model: [Doug DC-9-34](https://openairdocs.org/model/mcdonnell-douglas-dc-9-34) (OpenAirDocs)
- Aircraft serial: 47711
- System (JASC): [2170 · Humidity Control System](https://openairdocs.org/jasc/2170)
- Part: Duct
- Part number: 39347101
- Condition: Failed
- Location: Cabin
- Stage of operation: CR
- Nature of condition: O
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA9816102

## Discrepancy

COULD NOT MAINTAIN CABIN PRESSURIZATION AT ALTITUDE.  DESCENDED TO 10,000 FT AND PRESSURIZATION NORMAL FOR REMAINDER OF FLIGHT.  REPLACED THE LEFT WATER SEPARATOR DUCT.  CHECK-C 6-17-98 STL.

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