As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN AND COCKPIT TEMPERATURE CONTROL VALVE INTERNAL AND EXTERNAL COMPONENTS ARE VERY LOOSE AND MOVING DURING VALVE OPERATION. FOUND WHILE PERFORMING TASK 21-61-00-7100 COCKPIT AND CABIN MANUAL TEMPERATURE CONTROL OPERATIONAL CHECK. PART NUMBERS OF THE CABIN AND COCKPIT TEMP CONTROL VALVES ARE THE SAME.