What was found
RECEIVED A NR 3 ENGINE EXCEEDANCE LEVEL ONE MOMENTARILY ON THE TAKEOFF ROLL (AFTER 80 KTS) ELECTED TO CONTINUE DUE TO A REPEAT WRITE UP. DURING CLIMB EGT WAS FLUCTUATING INTO RED, 1072 . RETURNED TO DEPARTURE. REMOVED AND REPLACED THE UPPER LEFT, LOWER LEFT, UPPER RIGHT AND LOWER RIGHT THERMOCOUPLE HARNESSES IAW MM 77-21-01-2. REMOVED AND REPLACED FWD AND AFT THERMOCOUPLE LEADS IAW MM 77-21-02-2, STEP 1 AND 2 OF TSI. COMPLETED TSI 77-20/2868. PERFORMED POWER ASSURANCE CHECK IAW JRH. EGT PARAMETERS ARE WITHIN LIMITS WITH NO FLUXUATIONS OR DEFECTS NOTED. ACFT OK FOR SERVICE.