As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/MHT - FLT 6207 - DURING CLIMB-OUT AT 2200 HOURS ON 1-4-96, RETURNED TO IAD DUE TO THE RT MLG INTRANSIT LIGHT REMAINING ILLUMINATED AFTER GEAR SELECTED UP. AIRCRAFT LANDED AT IAD WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED RT MAIN GEAR UPLOCK SWITCH. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)