As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - DURING MAINTENANCE CHECK, FOUND EMERGENCY TRACK LIGHTS AND EXIT LIGHTS ON THE SMOKE BARRIER WOULD NOT TEST AFTER AIRCRAFT RECONFIGURATION. REMOVED AND REPLACED REMOTE ASSEMBLY BATTERIES ON THE SMOKE BARRIER AND THE AFT MOST SEAT PALLET, THEN LIGHTS OPERATED NORMAL. (M)