As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 3491 - CREW REPORTED THE EMERGENCY LIGHTS WERE INOPERATIVE. MAINTENANCE REMOVED THE POWER PACKS AND RECHARGED ON THE BENCH. POWER PACKS WERE REINSTALLED AND AN OPERATIONAL CHECK WAS COMPLIED WITH AND AIRCRAFT WAS RETURNED TO SERVICE. (M)