As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NO CONFIGUATION OF LT PACK, TRIM AIR SWITCHES, TEMP CONTROLLER AUTO NOR STANDBY WILL PROPERLY REGULATED COCKPIT TEMP, COCKPIT TEMP EXTREMELY COLD. TROUBLE SHOT IAW FIM 21-60-00-815. TRIM AIR REGULATOR NOT OPENING. REMOVED CP FOUND PIN 1 ON VLV PUSHED BACK. RESEATED PIN & RECONECTED CP. OPERATED BOTH PACKS, TEMP CONTROL SATISFACTORY AT THIS TIME.