As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE AND FUMES IN CABIN PRIOR TO BOARDING FOR FIRST FLIGHT. THE CABIN SUPPLY TEMP WAS FULL HOT. THE CREW INFORMED MAINTENANCE THAT BOTH PACK TEMP SELECTORS WERE SELECTED TO FULL HOT IN MANUAL MODE. THE NO GO ODI CHECKLIST AND THE SMOKE ODOR WORK CARD 2120-2367 WERE COMPLIED WITH. A PNEUMATIC SYSTEM DUCT BURNOUT WAS COMPLIED WITH. NO PROBLEMS WERE NOTE AND THE AIRCRAFT WAS RETURNED TO SERVICE.