As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO CHANGE COCKPIT TEMP TO WARM THE AREA IN EITHER AND IN FULL ROTATION TO 'W' OR MANUAL IN FULL INCREASE. PERFORMED ZONE TEMP CONTROLLER BITE IAW AMM 216099/101. NO FAULTS NOTED. PERFORMED FLIGHT DECK TEMP CONTROL AND OPS TESTED IAW AMM 21-61-07. NO FAULTS NOTED, OPS CHECKED OK.