As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AN OVERNIGHT LINE CHECK THE EMERGENCY LIGHTS AT BOTH SETS OF OVERWING EXITS WERE FOUND TO BE INOPERATIVE. MX FOUND THE ASSOCIATED BATTERY PACKS TO BE DEFECTIVE AND REPLACED THEM. SYS OPS WAS NORMAL AFTER THE BATTERY PACKS WERE REPLACED. (K)