As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO MODULATE FLT DECK TEMP IN AUTO POSITION. VARIES FROM VERY HOT TO VERY COLD TEMPS. (<DIV>PERFORMED BITE TEST OF PACK TEMP CONTROLLERS IAW AMM 21-51-00. PERFORMED OPS TEST OF FLOW CONTROL SHUT OFF VALVE IAW AMM 21-51-01. PERFORMED OPS CHECK OF CABIN ZONE TEMP CONTROL PANEL 21-61-04. ALL OPS CHECK GOOD. </DIV>)