As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE TO AMS, FLIGHT ATTENDANT REPORTED READING LIGHTS IN AFT OF AIRCRAFT FLASHING ON AND OFF WITH NO CONTROL OVER THEM. ALSO, NOTED AN ELECTRICAL SMOKE SMELL THAT WAS VERIFIED BY SECOND OFFICER. THE SMELL LASTED 10 MINUTES THEN DISSIPATED. AIRCRAFT CONTINUED TO AMS AND LANDED WITHOUT INCIDENT. REPLACED 36FG AND 38FG SEAT BOXES AND 31FG OVERHEAD DECODER. OPERATIONAL CHECK GOOD.