As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO CONTROL FWD CABIN TEMPERATURE. CONTINUED TO RISE EVEN AT FULL COLD. TURNED THE FWD CONTROLLER TO OFF IN ORDER TO MAINTAIN A GOOD TEMPERATURE. ACFT GROUNDED. FOUND THE FWD TEMP SENSOR FAN BINDING WITH LANYARD. POSITIONED THE LANYARD, FAN OPS CHECKED OK. PERFORMED FIM 21-61, 864.