# SDR SWIA201333029

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 2013
- Submitted: March 22, 2013
- Operation: Air carrier
- Aircraft: N565SW
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120340
- Aircraft time: 30,755 hours, 42,259 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: G
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA201333029

## Discrepancy

RAPID HARD PRESSURE BUMPS WITH AUTO PRESSURIZATION, SWITCHED TO MANUAL MODE, CABIN KEPT WANTING TO DUMP.  MASKS DEPLOYED IN CABIN.  (FLT 7407)  REPLACED THE ELECTRONIC CONTROLLER IAW AMM, RESTOWED MASKS.  P/N 22201T011400  S/N ON 434 S/N OFF 488.

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