As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - DURING OVERNIGHT MAINTENANCE, LEFT EXTERIOR OVERWING EMERGENCY EXIT LIGHT INOPERATIVE. MAINTENANCE FOUND THE LIGHT ASSEMBLY AT FAULT. REPLACED LEFT EXTERIOR OVERWING EMERGENCY EXIT LIGHT ASSEMBLY. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)