What was found
APPROXIMATELY 80 KNOTS RECEIVED AN ENGINE ANTI-ICE OVERHEAT AND A SINGLE WARNING CHIME. CREW ABORTED TAKEOFF AND MESSAGE CLEARED DURING ROLLOUT. CREW UNABLE TO DUPLICATE THE PROBLEM AND THE A/C WAS CLEAR TO LAUNCH. DURING FLT 2265, MKE-BNA, THE SAME PROBLEM OCCURRED. THE CREW MADE AN AIR TURN BACK TO MKE. MAINTENANCE REPLACED THE BLEED AIR SHUTOFF VALVE AND WITH ALL OPERATIONAL CHECKS WERE GOOD THE A/C WAS RETURNED TO SERVICE. LATER THAT DAY BEFORE FLIGHT 2127 - CLE-MKE, THE SAME PROBLEM OCCURRED. THE CREW ABORTED THE TAKEOFF AND AGAIN THE MESSAGE CLEARED AND WAS UNABLE TO BE DUPLICATED. ON RETURN TO MKE, MAINTENANCE INSPECTED THE RIGHT ANTI-ICE VALVE AND CONNECTOR, ALL OPERATIONAL CHECK WERE GOOD. (M)