# SDR SIMA2018041700011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2018
- Submitted: April 17, 2018
- Operation: Air carrier
- Aircraft: [N935AE](https://openairdocs.org/aircraft/N935AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500920
- Aircraft time: 31,845 hours, 27,111 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 92185A010200
- Part serial: 00452
- 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/SIMA2018041700011

## Discrepancy

RETURN TO FIELD,  UNABLE TO CONTROL CABIN PRESSURIZATION IN FLIGHT. NO MASKS DROPPED. RECEIVED A NR 1 PACK OVLD CAUTION AFTER LANDING.   REMOVED AND REPLACED THE PRESSURIZATION DIGITAL CONTROLLER IAW AMM 21-31-01, FUNCTIONAL TESTED GOOD IAW AMM 21-31-00.

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