As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 1940 - EN ROUTE PDX-DFW - EMERGENCY EXIT FLOOR PATH LIGHTING FROM ROW 19 TO AFT OF AIRCRAFT ILLUMINATED INTERMITTENTLY THROUGHOUT FLIGHT. LANDED DFW WITHOUT INCIDENT. REPLACED BOTH MID BATTERY PACKS AND CHARGERS. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)