As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LHR - FLT 104 - DURING CRUISE, FLIGHT ATTENDANT NOTED A ELECTRICAL BURNING SMELL IN THE FORWARD CABIN AND AN UNUSUAL NOISE FROM SEAT ROW 2HJ. AIRCRAFT LANDED LHR WITHOUT INCIDENT. MAINTENANCE FOUND THE EQUIPMENT COOLING FAN OVERHEATING. REPLACED EQUIPMENT COOLING FAN. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)