What was found
AFTER TAKEOFF, THE TAIL COMPARTMENT HIGH TEMPERATURE INDICATOR LIGHT ILLUMINATED WITH POWER SET AT CLIMB AND AT TAKEOFF EPR. INDICATION EXTINGUISHED AT LOWER POWER SETTING. FLIGHT CREW DECLARED YELLOW EMERGENCY, RETURNED TO ATL AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED PERI SEALS AT RIGHT HEAT EXCHANGER AND TAIL COMPARTMENT TEMPERATURE SENSORS. OPERATIONAL CHECK NORMAL.