As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 5764 - STL-PHL - EMERGENCY FLOOR PATH PROXIMITY LIGHTING SECTIONS 9 THROUGH 12 WILL NOT ILLUMINATE DURING EMERGENCY LIGHT PRE-FLIGHT OPS CHECK. MAINTENANCE FOUND LOOSE CONNECTOR AT FLOOR STRIP. RECONNECTED, OPS CHECKS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE. (M)