# SDR DXTA2026081009227

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 2026
- Submitted: August 10, 2026
- Operation: Air carrier
- Aircraft: [N261QS](https://openairdocs.org/aircraft/N261QS), registered now
- Make and model: Cndair CL6002B16
- Aircraft serial: 6199
- Aircraft time: 2,300 hours, 1,260 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Module
- Part number: 10275B04C03
- Part serial: 2349A
- Condition: Faulted
- 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/DXTA2026081009227

## Discrepancy

AFTER TAKEOFF THE AIRCRAFT WOULD NOT PRESSURIZE. WE USED QRH (CABIN ALT) FOR GUIDANCE, AND TRIED MANUAL MODE AND THE AIRCRAFT STILL WOULD NOT PRESSURIZE.  REPLACED DEFECTIVE CABIN PRESSURE CONTROLLER IAW AMM 21-31-13-400-801, NO DEFECTS NOTED. REPLACED DEFECTIVE CABIN PRESSURE MODULE IAW AMM 21-33-01-400-801 WITH NO DEFECTS NOTED. REPLACED PRIMARY OUTFLOW VALVE WITH A NEW IAW AMM 21-32-01-400-801, WITH NO DEFECTS NOTED. REPLACED SECONDARY OUTFLOW VALVE WITH A REPAIRED UNIT IAW  AMM 21-32-01-400-801, WITH NO DEFECTS NOTED.

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