What was found
ORD - DURING OVERNIGHT MAINTENANCE, EXTERIOR EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK TO EXTERIOR EMERGENCY LIGHTS. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ORD - DURING OVERNIGHT MAINTENANCE, EXTERIOR EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK TO EXTERIOR EMERGENCY LIGHTS. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)