As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RTFL WITH SMOKE IN THE CABIN. ODOR EMINATED FROM 1ST CLASS TOWARD BACK, TURNING VIDEO EQUIP OFF REDUCED THE ODOR FOR A WHILE, THEN RETURNED. LIGHT HAZE IN CABIN EVIDENT. RAN BOTH LT AND RT PACKS INDIVIDUALY NO SMOKE OR ODOR NOTICED. RAN ENTIRE VIDEO SYSTEM AND INSPECTED LIGHT BALLEST IN FWD CABIN NO SMOKE OR ODORS NOTICED. RAN ALL FWD AND MID GALLEY SYSTEMS NO DESCRIPANCIES. NEVER REPEATED.