# SDR QXEA200701540

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 13, 2007
- Submitted: October 17, 2007
- Operation: Air carrier
- Aircraft: N604QX
- Make and model: Cndair CL6002C10
- Aircraft serial: 10019
- Aircraft time: 15,487 hours, 11,039 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Obstructed
- Location: Cabin Pressure
- Stage of operation: CR
- How discovered: O
- Nature of condition: C, J
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA200701540

## Discrepancy

RNO - FLIGHT 2516, AT CRUISE FLIGHT AT 38,000 FEET RECEIVED A MASTER CAUTION MESSAGE FOR THE CABIN ALTITUDE.  CABIN ALTITUDE CONTINUED TO CLIMB TO 11,400.  THE PASSENGER OXYGEN MASKS DEPLOYED AND STARTED A DESCENT TO A SAFE ALTITUDE.  DIVERTED TO RENO AND ACCOMPLISHED A UNEVENTFUL LANDING.  MAINTENANCE FOUND THE NR 1 SAFETY OUTFLOW VALVE HAD LOOSE INSULATION AROUND IT KEEPING THE VALVE IN THE OPEN POSITION.  CLEARED INSULATION FROM AREA.  PERFORMED A OPERATIONAL CHECK OF THE PRESSURIZATION SYSTEM.  CHECKS GOOD WITH NO DEFECTS.  AIRCRAFT RETURNED TO SERVICE.  NO PARTS REPLACED.

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