As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MSP CREW REPORTED TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED DURING CLIMB OUT. EMERGENCY DECLARED FLIGHT RETURNED MSP LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED 13 STAGE DUCT ON RT HAND AUGMENTATION VLV. SYS GND CHECKED NORMAL OPERATION CLOSED.