As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, SMOKE ACCUMULATED FROM SEAT 87AB. CREW WAS UNABLE TO LOCATE SOURCE OF SMOKE. AIRCRAFT DIVERTED TO MSP AND DUMPED FUEL DOWN TO 155K. AIRCRAFT LANDED WITHOUT INCIDENT. FOUND LIQUID SPILL ON SEAT ELECTRONICS BOX. REPLACED SEB. MAINTENANCE REPLACED THE VIDEO MONITORS AND VEB AS A PRECAUTION, OPERATIONAL CHECK GOOD.