# SDR DXTA2026082409379

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 2026
- Submitted: August 24, 2026
- Operation: Air carrier
- Aircraft: [N529QS](https://openairdocs.org/aircraft/N529QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0309
- Aircraft time: 5,337 hours, 3,464 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Solenoid
- Part number: 70R104612
- Part serial: 0971
- Condition: Failed
- 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/DXTA2026082409379

## Discrepancy

CLIMBING THROUGH 6K, WE GOT THE CHECK DOORS AND CABIN DOOR OPEN CAS.  THE AIRCRAFT REFUSED TO PRESSURIZE AND UPON LANDING THE CAS REMAINED.  REMOVED FAILED ROTARY SOLENOID. INSTALLED NEW ROTARY SOLENOID. REMOVED FAILED PROXIMITY SWITCH.  INSTALLED NEW PROXIMITY SWITCH. WORKED IAW  52-70-15 AND CHAPT. 52-70-10. REMOVED FAILED CED MONITOR PCB,  INSTALLED INSPECTED CED MONITOR PCB. WORKED IAW 24-60-35. ACCOMPLISHED DOOR WARNING SYSTEM ADJUSTMENT/TEST. SYSTEM OPERATIONAL CHECKED GOOD. WORKED IAW 52-70-00.

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