As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6558 - IAD-CHO - DURING APPROACH, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO NO RT MAIN LANDING GEARA INDICATION. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED LIGHT BULBS, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)