# SDR QXEA200701905

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2007
- Submitted: December 19, 2007
- Operation: Air carrier
- Aircraft: N414QX
- Make and model: Bombdr DHC8402
- Aircraft serial: 4061
- Aircraft time: 15,813 hours, 15,723 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: 81150C020201
- Part serial: 00147
- Condition: Malfunctioned
- Location: Cabin Pressure
- Part time: 14,413 hours, 13,987 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA200701905

## Discrepancy

RNO- FLIGHT 2441 - AIRCRAFT FAILED TO PRESSURIZE AFTER TAKEOFF IN EITHER AUTO OR MANUAL MODES.  MORE THEN NORMAL NOISE FROM THE FORWARD BULKHEAD AREA.  RETURNED TO THE FIELD AND ACCOMPLISHED A UNEVENTFUL LANDING.  MAINTENANCE REPLACED THE FORWARD SAFETY OUTFLOW VALVE.  OPERATIONAL CHECKS GOOD.  AIRCRAFT RETURNED TO SERVICE.

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