As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - DURING OVERNIGHT MAINTENANCE, OVERHEAD EMERGENCY LIGHTS AT FLIGHT DECK AND R1 DOOR FAILED TO STAY ILLUMINATED. REPLACED BATTERY ASSEMBLY TO OVERHEAD EMERGENCY LIGHTS AT FLIGHT DECK AND R1 DOOR. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)