# SDR C2XA11CL054

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 2011
- Submitted: February 21, 2011
- Operation: Air carrier
- Aircraft: [N12160](https://openairdocs.org/aircraft/N12160), registered now
- Make and model: Emb EMB-145XR
- Registry model: [EMB EMB-145XR](https://openairdocs.org/model/embraer-emb-145xr) (OpenAirDocs)
- Aircraft serial: 145799
- Aircraft time: 19,748 hours, 10,662 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: 2099L011100
- Part serial: 140
- Condition: Faulty
- Location: Cabin Pressure
- Part time: 27,313 hours, 6,181 cycles
- 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/C2XA11CL054

## Discrepancy

EWR - FLT 2370 THE CREW REPORTED A CABIN ALTITUDE AMBER INDICATION 8400-8500 AT FL370.  NO CHANGE IN MANUAL MODE.  DESCENT IN AUTO MODE WAS NORMAL.  MAINTENANCE INSPECTED AND REPLACED THE OUTFLOW VALVE AND OPERATIONAL CHECKS WERE GOOD.

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