# SDR L4OA2026102300902

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 18, 2026
- Submitted: October 24, 2026
- Operation: General aviation
- Aircraft: N821NE
- Make and model: Cessna 525C
- Registry model: [Cessna 525C](https://openairdocs.org/model/cessna-525c) (OpenAirDocs)
- Aircraft serial: 0461
- Aircraft time: 1,673 hours, 868 cycles
- System (JASC): [2731 · Elevator Tab Control System](https://openairdocs.org/jasc/2731)
- Part: Actuator
- Part number: 2A7218F
- Part serial: F1067
- Condition: Inoperative
- Location: Zone 300
- Part time: 1,673 hours, 868 cycles
- Stage of operation: CL
- How discovered: V
- Nature of condition: J, F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/L4OA2026102300902

## Discrepancy

AFTER TAKEOFF FROM SCOTTSDALE, AZ (KSDL) AT 07:23 AM, THE FLIGHT CREW RECEIVED A PRIMARY ELEVATOR TRIM FAIL AMBER CAS MESSAGE AT APPROXIMATELY 5,000 FEET DURING THE INITIAL CLIMB. THE CREW COMPLETED THE REQUIRED CHECKLIST PROCEDURES, WHICH INCLUDED DISENGAGING THE AUTOPILOT AND RESETTING THE ELEVATOR TRIM CIRCUIT BREAKER; HOWEVER, THE MESSAGE REMAINED ACTIVE.  THE NEXT STEP IN THE CHECKLIST WAS TO ENABLE THE SECONDARY TRIM, BUT THE CREW NOTED THAT THE SECONDARY TRIM WAS UNRESPONSIVE. PER THE FAILURE PROCEDURES FOR A "JAMMED OR INOPERATIVE ELEVATOR TRIM SYSTEM," THE CREW COMPLETED THE REQUIRED CHECKLIST ITEMS, DECLARED AN EMERGENCY, AND RETURNED TO KSDL, LANDING SAFELY AT APPROXIMATELY 08:12 AM.  TEXTRON AVIATION TECHNICIANS SUBSEQUENTLY DISPATCHED TO SCOTTSDALE TO TROUBLESHOOT THE ISSUE. THEY REPLACED THE LEFT ELEVATOR TRIM ACTUATOR (VENDOR P/N 2A7218F, TEXTRON AVIATION P/N 9912731-6), AND ALL WORK WAS COMPLETED ON OCTOBER 19, 2026.

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