As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - DURING SCHEDULED PS-2 CHECK, MAINTENANCE REPORTED SEVERAL EMERGENCY LIGHTS TO BE INOPERATIVE DURING OPERATIONAL CHECK OF EMERGENCY LIGHTING SYSTEM. MAINTENANCE REMOVED AND REPLACED A POWER SUPPLY UNIT, OPERATIONAL CHECK WAS GOOD IAW ATR JIC 33-51-21 ABD AIRCRAFT WAS RETURNED TO SERVICE. (M)