As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT THE ORANGE SECTION OF THE FLOOR PROXIMITY LIGHTING AT THE EMERGENCY EXIT WAS NOT ILLUMINATED DURING THE PREFLT CHECKS. CONTRACT MAINTENANCE WAS CALLED OUT AND FOUND THE CONNECTOR LOOSE BETWEEN THE SECTIONS ON THE FLOOR. RESECURED THE CONNECTOR, ACCOMPLISHED AN OPS CHECK, OPS CHECK WAS GOOD. A/C DEPARTED WITHOUT FURTHER INCIDENT. NO PARTS USED.