# SDR HNAA2018021900034

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2018
- Submitted: February 19, 2018
- Operation: Air carrier
- Aircraft: [N638AE](https://openairdocs.org/aircraft/N638AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145172
- Aircraft time: 43,017 hours, 39,024 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2018021900034

## Discrepancy

SLOW LOSS OF PRESSURIZATION AT 34,000 FT. PRESSURIZATION STABILIZED AROUND 15,500 FT. SMALL POP IN CABIN AT THE TIME CABIN ALTITUDE WENT AMBER.   R & R THE CABIN PRESSURE CONTROLLER AND PERFORMED AN OPS CHECK IAW AMM 21-31-01, 21-31-00-700-801-A, AND 21-31-00-700-802-A. OPS CHECKED GOOD.  OKAY FOR SERVICE.

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