As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6506 - IAD-LGA - DURING TAKEOFF, MADE AN UNSCHEDULED LANDING DUE RIGHT GEAR INTRANSIT LIGHT WOULD NOT EXTINGUISH ON GEAR UP. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED UPLOCK SWITCH. MAINTENANCE PERFORMED GEAR SWING, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)