As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - CREW REPORTED STRONG ELECTRICAL SMELL ON DESCENT IN THE AFT OF CABIN. EMERGENCY DECLARED LANDED DFW WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED OVERHEAD LIGHT BALLAST AND LAMP AT 25-26DEF THAT WAS INOPERATIVE. SYSTEM GROUND CHECKED NORMAL OPERATION.