# SDR SWAA106712

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2010
- Submitted: October 28, 2010
- Operation: Air carrier
- Aircraft: N740SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29276
- Aircraft time: 43,585 hours, 25,752 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Control Valve
- Part number: 2079801
- Part serial: 9846915
- Condition: Faulty
- Location: Ac Bay
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA106712

## Discrepancy

ON DESCENT PASSING THRU 29.5 CABIN ALTITUDE HORN CAME ON.  CABIN PRESSURE 10.5.  REMOVED AND REPLACED FLOW CONTROL VALVE PER MM.

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