What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO JAX DUE TO THE FLIGHT CREW REPORTING THAT ENGINE 1 TEMP OVERHEAT AFTER TAKEOFF WHILE RAISING THE GEAR. AT ACCELERATION ALTITUDE, WE REDUCED POWER TO CLIMB. ENGINE ETT RETURNED TO NORMAL INDICATIONS. ENGINE ONE EGT OVER TEMP REMAIN AFTER THE REDUCTION OF POWER. THE AIRCRAFT LANDED SAFELY AT JAX WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED TROUBLESHOOTING OF ENGINE 1 EGT OVER TEMP FAULT PER AMM 72-00-00 -200-A. NO FINDINGS DURING BORESCOPE. ENGINE 1 IS ON WATCHLIST FOR LOW EGT MARGIN.