What was found
(CAN) AFTER DEPARTURE, THE AIRCRAFT BEGAN EXPERIENCING PROBLEMS WITH THE RIGHT SIDE EGT INDICATION IN NORMAL AND STANDBY. RIGHT HAND EGT ON UPPER EICAS AND STANDBY ENGINE INDICATOR WENT BLANK ON CLIMB OUT. OCCASIONALLY EGT WOULD INDICATE BUT ERRONEOUSLY. CREW ELECTED TO RETURN TO DEPARTING STATION. REPLACED RIGHT ENGINE JUNCTION BOX DUE CONTAMINATED RECEPTACLE, PER AMM 77-21-03-401. RIGHT ENGINE EGT INDICATION CHECKED SERVICEABLE DURING HIGH POWER RUN.