As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE & FUMES REPORTED IN CABIN DURING FLIGHT, STRONGEST IN THE AFT CABIN, BUT FOUND THROUGHOUT. SMOKE SEEMED TO DISSIPATE WITH IFE POWER REMOVED. AN EMER WAS DECLARED & THE FLIGHT DIVERTED WITHOUT FURTHER INCIDENT. ACFT REMOVED FROM SERVICE. FAULT CONFIRMED. REPLACED SEVERAL SEAT POWER PORTS.