As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#44, LGW-JFK. (ETOPS) 'COCKPIT AIR TEMPERATURE VERY DIFFICULT TO CONTROL CONSTANT VARIATION OF AIR TEMP BETWEEN 48F AND 108F (FROM DUCT); FOUND COCKPIT AIR TEMPERATURE SENSOR COVERED. REMOVED OBSTRUCTION FROM TEMP SENSOR A/C OK TO CONT FOR SVC.'