What was found
FLIGHT N2765, CREW REPORTED THAT DURING CLIMB ON GEAR RETRACTION, NOTICED ITT’S BETWEEN E1 AND E2 WERE RATHER LARGE. AFTER TAKEOFF NR E1 ITT 840 . E 2 ITT 670. AFTER CLIMB CHECKLIST, E1 ITT 740- E2 ITT 650 ITT SPLIT RANGED BETWEEN 110 TO 140. AFTER CLIMBING THRU 21000 NR 1 ITT CLB PAST 800 AND CLIMBED SLOWLY. DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE. LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED NR 2 ENGINE B ITT HARNESS IAW MM 77-21-20. PERFORMED OPS CHECKS IAW MM 72-00-00, OPS CHECKED GOOD. ENGINE PERAMETERS NORMAL AT THIS TIME. REMOVED AND REPLACED NR 2 ENGINE B THERMOCOUPLE HARNESS IAW MM 77-21-20. RETORQUED CLAMPS ON NR 1 ENGINE Y DUCT IAW AMM 36-11-09. LEAK CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.