As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT TRANSIT CHECK, SMELLED SMOKE AT ROW 21 ENTERTAINMENT SYSTEM. TROUBLESHOT SYSTEM. FOUND BURNED OUT SEAT ELECTRONIC BOX AT ROW 11DEF. REMOVED AND REPLACED SEAT ELECTRONIC BOX AT ROW 11 DEF. ENTERTAINMENT SYSTEM CHECKED NORAML IAW 23-34-00. AIRCRAFT RETURNED TO SERVICE. (M)