What was found
ON RUN UP FOR TAKEOFF, FOUND OFF FLAG ON THE DG AND SMELLED ELECTRICAL SMOKE FUMES IN THE COCKPIT. THE COMPONENT WAS SECURED AIRCRAFT RETURNED TO ARA FOR MAINTENANCE, AIRCRAFT REPLACED BY N547AL. MAINTENACNE NOTED OFF FLAG ON DIRECTIONAL GYRO, FOUND CONNECTOR RECEPTACLE LOOSE AND STRONG ODOR OF BURNED ODOR EMITTING FROM GYRO. REPLACED GYRO, POWERED UP AVIONICS VISUAL AND ODOR INSPECTION, FUNCTIONED CHECK OK. (M)