# SDR SWIA200110450

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 2001
- Submitted: December 24, 2001
- Operation: Air carrier
- Aircraft: N216SW
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120285
- Aircraft time: 21,432 hours, 28,817 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Malfunctioned
- 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/SWIA200110450

## Discrepancy

AFTER TAKEOFF, CABIN PRESSURE DIFFERENTIAL INCREASED TO 5 PSI AND CABIN ALTITUDE DROPPED TO 0 MSL.  COULD NOT CONTROL WITH MANUAL CONTROLLER.  RETURNED TO SLC.  PERFORMED OPERATIONAL CHECK OF MANUALLY CONTROLLED OUTFLOW VALVE IAW MM 21-30-00.  OPS CHECK GOOD.

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