# SDR DXTA2013031905321

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 19, 2013
- Submitted: March 22, 2013
- Operation: Air carrier
- Aircraft: [N916QS](https://openairdocs.org/aircraft/N916QS), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500116
- Aircraft time: 11,466 hours, 7,108 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Control Valve
- Part number: 21198623
- Part serial: 34C0269
- Condition: Malfunctioned
- Location: Cabin Pressure
- Part time: 6,637 hours, 4,087 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2013031905321

## Discrepancy

AMBER "CABIN ALTITUDE" CAS MESSAGE ILLUMINATED IN FLIGHT APPROX 10 MINUTES INTO LEVEL FLIGHT AT FL 400. CABIN BEGAN TO DEPRESSURIZE.  IMMEDIATELY DESCENDED TO 10,000 FT AND LANDED. R & R THE MANUAL CONTROL VALVE IAW MM 21-30-00.  OPS CHECKED GOOD.

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