# SDR VNAA2024102211102

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2024
- Submitted: October 22, 2024
- Operation: Air carrier
- Aircraft: [N547NN](https://openairdocs.org/aircraft/N547NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15317
- Aircraft time: 21,702 hours, 19,665 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Malfunctioned
- Location: Zone 100
- 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/VNAA2024102211102

## Discrepancy

CABIN ALT CAUTION THROUGH 10000FT. CABIN ALT WARNING ABOVE 11000 / FOUND GROUND VALVE TO BE DEFERRED IN THE WRONG POSITION. PERFORMED PRESSURIZATION OF THE A/C IAW CRJ-900 AMM 21-31-00-910-801-A02-PSA. PRESSURIZATION WAS GOOD. NO DEFECTS NOTED

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