As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - PILOT REPORTED THAT THE TEMPERATURE IN THE COCKPIT AND THE FORWARD CABIN IS HARD TO CONTROL. ALSO, NOTICED A DIRTY SOCK SMELL. MAINTENANCE ACCOMPLISHED A BITE CHECK OF THE CABIN TEMPERATURE CONTROL PER MM 21-61-83-744-007. NO FAULTS NOTED. REPLACED RECIRCULATION FILTER PER MM 21-21-23. AIRCRAFT OK FOR SERVICE.