What was found
ORD - FLT 0096 - AFTER TAKEOFF MIA WHEN REACHING TOP OF CLIMB AT FL 390, AUTOTHROTTLE DISCONNECTED FOLLOWED BY SLIGHT ELECTRICAL ODOR IN COCKPIT. ODOR DISSIPATED AFTER APPROXIMATELY 2 MINUTES AND AUTOTHROTTLES RE-ENGAGED WITH NO FURTHER PROBLEMS NOTED. AIRCRAFT PROCEEDED TO ORD AND LANDED WITHOUT INCIDENT. REPLACED AUTOTHROTTLE SERVO MOTOR. SYSTEM GROUND CHECKED, NORMAL OPERATION. (X)