# SDR SIMA20220502003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 2022
- Submitted: May 5, 2022
- Operation: Air carrier
- Aircraft: [N675AE](https://openairdocs.org/aircraft/N675AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500806
- Aircraft time: 41,026 hours, 36,894 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: None
- Part number: 92185A010200
- Condition: None
- Location: Cockpit Unit Dig
- Component: Digital Control
- Component part number: 92185A010200
- Stage of operation: CL
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20220502003

## Discrepancy

AIRCRAFT NOT PRESSURIZING EMERGENCY DECLARED. CABIN ALT, AP AND RATE DROPPED TO ZERO IN CLIMB AND STAYED AT ZERO UNTIL WE RAN CHECKLIST AND NEVER RECOVERED. -C/A-INTERROGATED CMC FOR MSGS IAW E145 AMM 45-45-00. NO MSG FOUND. RAR DIGITAL CONTROLLER IAW E145 AMM 21-31-01.PERFORMED OPS CHK OF AUTO AND MANUAL MODE IAW E145 AMM 21-31-00.OPS CHK GOOD. LEAK DOWN CHECK GOOD. NO FURTHER FAULTS FOUND.

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