What was found
RIGHT SIDE FUEL TEMPERATURE WAS HOT. IT WAS FLUCTUATING BETWEEN NORMAL AND A MAX OBSERVED TEMPERATURE OF 86 DEG C, BUT IT ONLY WAS MOMENTARILY THAT HOT. THE FLUCTUATION LASTED ONLY FOR ABOUT 10 MINUTES. THEN RETURNED TO A NORMAL TEMPERATURE FOR THE REMAINDER OF THE FLIGHT. RETURNED TO FIELD. LANDING UNEVENTFUL. REMOVED FROM SERVICE. REPLACED NR 2 ENGINE FUEL HEATER THERMAL ACTUATOR REF MM TASK 73-11-05-000-801 AND 73-11-05-400-801. OPS AND LEAK CHECKS GOOD. FUEL TEMP REMAINED IN GREEN THE ENTIRE TIME. RETURNED TO SERVICE.