What was found
ORD - DURING OVERNIGHT MAINTENANCE, OVERHEAD EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK TO OVERHEAD 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, OVERHEAD EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK TO OVERHEAD EMERGENCY LIGHTS. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)