As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SAN - CREW REPORTED TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED ON CLIMBOUT. EMERGENCY DECLARED FLIGHT RETURNED SAN LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND FLOW CONTROL VALVE LINE BROKEN AND BOOT FOR RIGHT TEMP CONTROL VALVE TORN. REPLACED TUBE FOR VALVE LINE AND BOOT FOR RIGHT TEMP CONTROL VALVE. SYSTEM GROUND CHECK NORMAL OPERATION.