# SDR RAIA201702080001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2017
- Submitted: February 27, 2017
- Operation: Air carrier
- Aircraft: N812HK
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145373
- Aircraft time: 38,269 hours, 33,553 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Malfunctioned
- 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/RAIA201702080001

## Discrepancy

AUTO AND MANUAL PRESSURIZATION MODES INOPERATIVE. PRESSURIZATION GOES UP AND DOWN ON ITS OWN WITH ALTITUDE.  R & R AUTO OUTFLOW VALVE OPS CHECKED GOOD,   R & R GROUND CONNECTION VALVE PERFORMED PRESSURIZATION CHECK.  OPS CHECKED GOOD.  NO DEFECTS NOTED

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