As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT MX - ONT - WHILE PERFORMING 1A CHECK AND OPERATIONAL CHECK OF THE FWD EXIT SIGN AT ROW 12, IT WAS FOUND NOT ILLUMINATING. MAINTENANCE PERSONNEL FOUND LOOSE CONNECTOR AND RE-ADJUSTED. OPERATIONALLY CHECKED SATISFACTORY AND ACFT WAS RELEASED TO RETURN FOR SERVICE. (S)