What was found
DURING CLIMBOUT, TAIL COMPARTMENT HIGH TEMP LIGHT ILLUMINATED. QRH COMPLIED WITH, LIGHT EXTINGUISHED. AN EMERGENCY WAS DELCARED, THE ACFT RETURNED TO DEPARTURE. AIRCRAFT LANDED WITHOUT INCIDENT. REPLACED THE LEFT TAIL COMPARTMENT OVERHEAT SENSORS IAW AMM 36-20-02. ACCOMPLISHED TAIL COMPARTMENT LEAK CHECKS IAW MCM 0930, 36-95-14, AND 26-96-11. NO LEAKS NOTEDE, OK FOR SERVICE. THE AIRCRAFT WAS GROUNDED.