# SDR DXTA2014033005702

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 27, 2014
- Submitted: April 4, 2014
- Operation: Air carrier
- Aircraft: [N630QS](https://openairdocs.org/aircraft/N630QS), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605130
- Aircraft time: 11,340 hours, 8,964 cycles
- System (JASC): [2497 · Electrical Power System Wiring](https://openairdocs.org/jasc/2497)
- Part: Wire
- Condition: Chafed
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2014033005702

## Discrepancy

DURING ROUTINE COCKPIT INSPECTION WITH MAIN BATTERY ON, AILERON TRIM BOUND DURING CHECK, AUTOPILOT SERVO CIRCUIT BREAKER TRIPPED & SMOKE WAS DETECTED.  TRIM KNOB WAS ROLLED TO RT THEN BOUND & STUCK 2/3 OF THE WAY.  TRIM KNOB WAS THEN ROLLED LT PAST NEUTRAL, BOUND AT 1/4 OF THE WAY.  AT THAT POINT ALL CTR PEDESTAL LIGHTING & SFD ILLUMINATED BEYOND FULL BRIGHT, DAY & NIGHT SWITCH OFF, THEN WENT DARK THEN SMOKE WAS DETECTED, AND CIRCUIT BREAKER TRIPPED.  TROUBLESHOT & FOUND AUTOPILOT CONTROLLER WIRES INTERFERING WITH AILERON TRIM CENTRAL ROD IN PEDESTAL.  BACK LIGHTING WIRES FOR AUTOPILOT CONTROLLER WERE WRAPPED AROUND TRIM ROD & BRAKE CAUSING SMELL.  REPAIRED WIRES & SECURED WIRE BUNDLE TO PREVENT FURTHER INTERFERENCE.  BACK LIGHTING & AUTOPILOT OPS CHECKS WERE SATISFACTORY.  AILERON TRIM CHECKED SATISFACTORY WORK DONE IAW WD 20-10-03.

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