# SDR SWAA081267

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2008
- Submitted: March 11, 2008
- Operation: Air carrier
- Aircraft: N239WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34714
- Aircraft time: 6,828 hours, 3,981 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: 2079801
- Part serial: 0646902
- Condition: Stuck
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA081267

## Discrepancy

DIVERSION - ON CLIMBOUT PASSING FL 300, CABIN ALTITUDE WARNING HORN CAME ON.  FOUND FWD OUTFLOW VALVE STUCK.  REMOVED AND REPLACED OUTFLOW VALVE PER MM.

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