As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORT: LIGHT SMOKE IN THE CABIN WITH PACKS ON. UNABLE TO DUPLICATE. ACCOMPLISHED PACK BURN WITH EXTERNAL AIR CART. RAN PACKS FULL WARM FOR APPX 10 MIN EACH AND DISSIPATED SMELLS. PACKS OPERATED WITH NO FUMES OR SMOKE AFTER BURNOUT. OPS NORMAL.