# SDR SIMA2019042219001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2019
- Submitted: April 22, 2019
- Operation: Air carrier
- Aircraft: [N615AE](https://openairdocs.org/aircraft/N615AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145087
- Aircraft time: 44,645 hours, 40,964 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 22250N030301
- Part serial: 00624
- Condition: Failed
- 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/SIMA2019042219001

## Discrepancy

AIRCRAFT BEGAN TO LOOSE PRESSURAZATION DURING CLIMB CABIN ALTITTUDE CONTINUED TO INCREASE UNTIL CLIMB STOPPED DESCENT BEGAN-C/A-DEFERRED AUTO AND MANUAL PRESSURAZATION M PROCEDURES C/W REF MEL 21-19 AUTH 040646DM-C. TS IAW 21-31-00-810-801-A REMOVED AND REPLACED DIGITAL CONTROLLER IAW EMB145 21-31-01 PERFORMED FUNCTION TEST OF AUTO MODE IAW 21-31-00-700-802-A AND FUNCTION TEST OF MANUAL MODE IAW 21-31-00-700-801-A BOTH OPS CHECK GOOD MEL ITEM RESTORED REVERSED M PROCEDURES

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