As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED AFTER TAKEOFF. CREW DECLARED AN EMERGENCY AND RETURNED TO BNA, AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND LEAKING CROSSFEED PNEUMATIC VALVE IN RIGHT SYSTEM. REPLACED VALVE AND TEMPERATURE SENSOR, OPERATIONAL CHECK NORMAL.