# SDR SWAA991663

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N354SW](https://openairdocs.org/aircraft/N354SW), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 25219
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 7638101
- Condition: Malfunctioned
- Location: E&E Compt
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA991663

## Discrepancy

CABIN PRESSURIZATION FAILED AT 33,000 FEET, CABIN CLIMBED TO 10,000 FEET BEFORE MANUAL MODE CONTROL FUNCTIONED.  STANDBY MODE OPS CK GOOD.  REMOVED AND REPLACED CABIN PRESSURE CONTROLLER PER MM.

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