As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/TVS - FLT 7341 - DURING TAXI, AIRCRAFT RETURNED TO GATE DUE TO EMERGENCY FLOOR TRACK LIGHTING INOPERABLE AND HAD NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND FOUND TRACK LIGHTING GOOD, OPS CHECK OK. AIRCRAFT RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)