As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAIL COMP OVERHEAT LIGHT CAME ON INFLIGHT. LIGHT EXTINGUISHED WHEN PNEUMATIC CROSS FEEDS CLOSED, AIRFOIL ANTI ICE OFF AND A/C SUPPLY HP BLEED OFF. DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE WITHOUT FURTHER INCIDENT. ACCOMPLISHED MCM 36-95-14. REMOVED & REPLACED THE LT & RT TAIL COMPARTMENT OVERHEAT SENSORS. TESTED SENSORS NORMAL IAW AMM 36-20-02. NO LEAKS NOTED. THE AIRCRAFT WAS GROUNDED.