As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACRID SMOKE IN THE CABIN. CHECKED ALL CABIN LIGHTS AND ALL GALLEY EQUIPMENT, RAN BOTH PACKS, RECIRC FAN AND ENG BLEEDS, CHILLERS AND OVENS. VISUAL CHECK FOR HYD AND OIL LEAKS. PERFORMED A VERIFICATION FLIGHT. ALL SYSTEM FOUND NORMAL. SMOKE ODOR COULD NOT BE DUPLICATED.