As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB OFF TEMP KNOB OFF ONLY WAY TO COOL FLT DECK 47 DEGREES C STAYED AT WHEN ON COLD OR AUTO. GROUNDED - YES. COCKPIT ZONE TEMP SENSOR FAN IS INOPERATIVE, C/B IS IN. REPLACED CONTROL CAB TEMP SENSOR FAN REF AMM 21-61-11. OPS NORMAL REF AMM 21-61-00. CONTROL CABIN TEMP CONTROL OPS NORMAL REF AMM 21-61-00.