# SDR C2XA11CL046

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2011
- Submitted: February 14, 2011
- Operation: Air carrier
- Aircraft: [N12552](https://openairdocs.org/aircraft/N12552), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145583
- Aircraft time: 20,289 hours, 15,447 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 22250N030301
- Part serial: 254
- Condition: Faulty
- Location: Cabin Pressure
- Part time: 24,753 hours, 21,188 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/C2XA11CL046

## Discrepancy

THE CREW REPORTED THE CABIN PRESSURIZATION DID NOT DESCEND ON SCHEDULE AFTER ENCOUNTERING ICING CONDITIONS IN AUTO MODE. MAINTENANCE INSPECTED AND REPLACED THE DIGITAL PRESSURIZATION CONTROLLER.  OPERATIONAL CHECKS WERE GOOD.

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