As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA - CREW REPORTED HAVING DIFFICULTY CONTROLLING CABIN AND COCKPIT TEMPERATURE AND HAVING RECURRENCE OF AIR NOISE IN COCKPIT. EMERGENCY DECLARED FLIGHT RETURNED MIA LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED LEFT TEMP VALVE AND TEMP PACK CONTROL VALVE. REPLACED RIGHT RECIRCULATION FAN FILTER THAT WAS CLOGGED. SYSTEM GROUND CHECK NORMAL OPERATION.