As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS - CREW REPORTED TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED AFTER TAKEOFF. EMERGENCY DECLARED FLIGHT RETURNED LAS LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND AUXILIARY POWER UNIT EXHAUST SHROUD LEAKING AT BOTH UPPER AND LOWER CLAMP ASSEMBLIES. TIGHTENED CLAMPS. SYSTEM GROUND CHECK NORMAL OPERATION.