# SDR SWAA2014032426366

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2014
- Submitted: March 25, 2014
- Operation: Air carrier
- Aircraft: N378SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 26585
- Aircraft time: 64,093 hours, 52,805 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: 7110035
- Part serial: 911288
- Condition: Faulty
- 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/SWAA2014032426366

## Discrepancy

CLIMBING THROUGH FL310 TO CRUISE ALT 350 THE CABIN ALT WARNING SOUNDED.  R & R OUTFLOW VLV & HEATER GASKET IAW MM.

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