As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE RIGHT MAIN LANDING GEAR UNSAFE LIGHT ILLUMINATED INTERMITTANTLY AFTER GEAR WAS FULLY RETRACTED, AND CONTINUED TO INTERMITTANTLY ILLUMINATE FOR THE REMAINDER OF THE FLIGHT. FLIGHT CREW RECYCLED THE LANDING GEAR. MAINTENANCE INSPECTED AND REPLACED THE RIGHT MAIN LANDING GEAR UNSAFE INDICATION LIGHT SOCKET IAW DC-9 MM 32-61-00. LANDING GEAR INDICATION OPS CHECKED GOOD ON GEAR SWING CHECKS.