As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6483 - IAD-CHS - DURING TAXI EXPERIENCED A DISCREPANCY WITH THE AFT SECTION WHITE EMERGENCY LIGHTS NOT TESTING. MAINTENANCE CONTROL NOTIFIED AND AIRCRAFT RETURNED TO THE GATE. MAINTENANCE WAS DISPATCHED AND FOUND THAT THE CONNECTOR FOR THE AFT SECTION OF EMERGENCY TRACK LIGHT HAD VIBRATED LOOSE. MAINTENANCE RESECURED CONNECTOR AND TESTED LIGHTS. AIRCRAFT WAS THEN RELEASED FOR SERVICE. (M)