As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TWO HOURS OF FLIGHT, STRONG ELECTRICAL/SULPHUR SMELL NOTED IN CABIN AND COCKPIT. ALSO GOT EQUIP OVERHEAT EICAS AND LIGHT. LIGHT WENT OUT AFTER SELECTING OVERRIDE. FOUND FWD EQUIPMENT SUPPLY FAN NR 1 SEIZED. REPLACED FAN AND SYSTEM NOW OPERATES NORMALLY.