# SDR ABXA9900807

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 23, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N945AX
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47551
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: 20219741
- Condition: Failed
- Location: Aft Fuselage
- Part time: 1,714 hours
- Stage of operation: LD
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA9900807

## Discrepancy

AUTO-PRESSURIZATION WAS INOPERATIVE.  AIRCRAFT WOULD NOT DEPRESSURIZE UNTIL LANDING.  OBSERVED STRONG ELECTRICAL SMELL.  REPLACED OUTFLOW VALVE ACTUATOR.

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