# SDR SIMA2018072318002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 18, 2018
- Submitted: July 23, 2018
- Operation: Air carrier
- Aircraft: [N650AE](https://openairdocs.org/aircraft/N650AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145417
- Aircraft time: 40,880 hours, 37,124 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Malfunctioned
- Location: Cabin Pressure
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA2018072318002

## Discrepancy

ON DESENT TO LANDING PASSING THROUGH FL 240, AURAL ALERT CABIN AND CABIN ALT REACHED 11,000 FT. TS PRESN AUTO FAIL MSG PER FIM 21-31-00-810-801-Z. R&R DIGITAL CONTROLLER IAW AMM 21-31-01-000-801-A/21-31-01-400-801-A FNC TASK 21-31-00-700-802-A GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.