# SDR RAIA201211190001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 2012
- Submitted: November 23, 2012
- Operation: Air carrier
- Aircraft: [N842HK](https://openairdocs.org/aircraft/N842HK), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145830
- Aircraft time: 21,001 hours, 19,443 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Malfunctioned
- Location: Cabin Pressure
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/RAIA201211190001

## Discrepancy

DURING CRUISE FLIGHT THE FLIGHT CREW REPORTED THEY WERE UNABLE TO HOLD CABIN ALT AT FLT 350 CLIMBING TO 8900 FT.  MAINTENANCE INSPECTED AND REMOVED AND REPLACED THE PNEUMATIC OUTFLOW VALVE.  SYSTEM OPS CHECKED GOOD.

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