As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FAT - CREW REPORTED TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED AFTER TAKEOFF. EMERGENCY DECLARED RETURNED FAT LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED AUG VALVE SENSE LINE THAT WAS CRACKED. SYSTEM GROUND CHECK NORMAL OPERATION.