As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - CREW REPORTED TAIL COMPARTMENT HIGH LIGHT ILLUMINATED. EMERGENCY DECLARED FLIGHT RETURNED IAH LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND LOOSE SENSE LINE AT FLOW CONTROL VALVE. TIGHTENED SENSE LINE. SYSTEM GROUND CHECK NORMAL OPERATION.