As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAIL COMPARTMENT HIGH TEMPERATURE LIGHT ILLUMINATED AFTER TAKEOFF. LIGHT WENT OUT WHEN POWER WAS REDUCED TO IDLE. EMER DECLARED FLIGHT RETURNED & LANDED WITHOUT INCIDENT. ACFT REMOVED FROM SERVICE. FOUND DUCT FAILED AT MOVABLE JOINT AREA. REPLACED DUCT ASSEMBLY ON RT SYS. SYS GND CHECKED NORMAL OPERATION CLOSED.