As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LHR - FLT 142 - EN ROUTE JFK/LHR, DURING CRUISE, ELECTRICAL ODOR NOTED COMING FROM MAIN VIDE SYSTEM OPPOSITE BUSINESS CLASS GALLEY. TURNED OFF VIDEO UNIT NR 1 AND ODOR WENT AWAY. AIRCRAFT PROCEEDED TO LHR AND LANDED WITHOUT INCIDENT. REPLACED NR 1 MAIN VCR PLAYER. SYSTEM GROUND CHECKED NORMAL OPERATION WITH NO ODOR NOTED. (M)