# SDR SIMA20150513004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 13, 2015
- Submitted: May 15, 2015
- Operation: Air carrier
- Aircraft: [N645AE](https://openairdocs.org/aircraft/N645AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145212
- Aircraft time: 36,195 hours, 33,091 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: CL
- 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/SIMA20150513004

## Discrepancy

CLIMBING FROM FL 360 TO FL 370 AUTO PRESSURE SPINED CABIN ALTITUDE TO 8300, CABIN AP TO 8:0 CABIN RATE -2500 FT THEN + 800 FT THEN CABIN ALT AP RATE WERE FLUCTUATING TALL.  MANUAL MODE SELECTED. R & R AUTO PRESSURIZATION DIGITAL CONTROLLER IAW AMM 21-31-01.  OPS CHECKED GOOD IAW AMM 21-31-00.

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