What was found
(CAN) DEPARTING THE CREW OBSERVED A STRUT OVERHEAT CONDITION ON NR 3 ENGINE. THE AIRCRAFT DIVERTED WHERE MAINTENANCE DETECTED A LEAK AT THE WING ANTI ICE SHUT-OFF VALVE (SOV). GASKETS WERE REPLACED AND NO FURTHER FAULT APPEARED EVIDENT AT GROUND RUN. DURING THE SUBSEQUENT DEPARTURE THE OVER TEMP CONDITION AT APPLICATION OF TAKE-OFF POWER, THE CREW REJECTED THE TAKE-OFF. MAINTENANCE DETECTED A LEAK AT THE PRE-COOLER WHICH WAS CORRECTED AND CARRIED OUT MULTIPLE TAKE-OFF POWER TESTS WITH NO FAULT INDICATION. THE SUCCEEDING DEPARTURE WAS AGAIN REJECTED AT 60KNOTS DUE TO AN OVERTEMP CONDITION ON NR 3 STRUT. MAINTENANCE REPLACED THE FIRE WIRE LOOP AND CORRECTED AN ADDITIONAL LEAK AT THE PRECOOLER BEFORE RETURNING THE