# SDR DXTA2026100710060

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2026
- Submitted: October 7, 2026
- Operation: Air carrier
- Aircraft: [N892QS](https://openairdocs.org/aircraft/N892QS), registered now
- Make and model: Textrn TEXTRON700
- Aircraft serial: 7000156
- Aircraft time: 1,025 hours, 614 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Pcb
- Condition: Faulted
- Location: Zone 800
- Stage of operation: TX
- How discovered: C
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026100710060

## Discrepancy

CABIN DOOR WILL CLOSE AND HANDLE STOWS, HOWEVER, YELLOW LIGHT WILL NOT GO OUT AND CAS MESSAGE WILL NOT GO OUT. UPON RUNNING QRH PROCEDURE, WHEN PUSHING THE CANCEL BUTTON, THE CHECK HANDLE LIGHT NEVER FLASHES. CABIN DOOR PINS ALL APPEAR TO BE STOWED CORRECTLY, AND LIFT MECHANISM WORKING CORRECTLY, HOWEVER, DOOR RESET PROCEDURE WAS UNSUCCESSFUL, QRH PROCEDURE UNSUCCESSFUL. CORRECTIVE ACTION: SUBMITTED ARES DATA TO TEXTRON AND REVIEWED TROUBLESHOOTING RECOMMENDATIONS. PERFORMED CABIN DOOR RESET PROCEDURE IN ACCORDANCE WITH THE AFM. RESET DID NOT CORRECT THE FAULT. REMOVED CABIN DOOR STAIRS AND ACCOMPLISHED WIRING TROUBLESHOOTING OF THE CABIN DOOR MONITORING SYSTEM AND ASSOCIATED WIRING, BEGINNING AT THE DOOR CONNECTORS AND WORKING BACK TOWARD PCB NC103. INITIAL TROUBLESHOOTING INDICATED NO VOLTAGE PRESENT FROM PCB NC103 TO THE PAWL SOLENOID. REINSTALLED ALL COMPONENTS AND REASSEMBLED CABIN DOOR. FOLLOWING REASSEMBLY, REPEATED VOLTAGE CHECKS AT THE PCB BY BACK PINNING AND OBTAINED PROPER VOLTAGE INDICATIONS. DURING TROUBLESHOOTING, PIN 46 AT CONNECTOR PC137 WAS LIKELY RESEATED. VERIFIED PIN SEATED WITH INSERTION TOOL. CABIN DOOR OPERATION INITIALLY HAD ABNORMAL BEHAVIOR, APPEARING TO LOCK WHEN IT SHOULD HAVE RELEASED. PERFORMED AN ADDITIONAL CABIN DOOR RESET PER AFM. FAULT CLEARED AND SYSTEM RETURNED TO NORMAL OPERATION. OPERATED CABIN DOOR MULTIPLE TIMES FROM BOTH INTERIOR AND EXTERIOR CONTROLS WITH NO DISCREPANCIES NOTED. WORK ACCOMPLISHED IAW CE700 WDM CHAPTER 52-00-01 AND AMM CHAPTER 52-10-00.

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