As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LINE CHECK, MX FOUND THEY HAD NO CONTROL OF THE EMERGENCY ESCAPE LIGHTING AT THE OVERWING EXITS IN THE CABIN, WOULD NOT TURN OFF. MX REPLACED THE BATTERY PACK FOR THE NOTED LIGHTED AREA AND THE LIGHTS RETURNED TO A CONTROLLABLE CONDITION. OPS CHECKED GOOD.