As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT MAIN GEAR INDICATOR STAYED RED WITH NO GREEN DURING GEAR EXTENSION. GEAR WARNING HORN SOUNDED WITH FLAPS 15. NO CHANGE WITH MANUAL EXTENTION, GEAR APPEARED DOWN THROUGH MAIN GEAR VIEWER. AFTER LANDING RIGHT MAIN RED LIGHT EXTINGUISHED AND GREEN LIGHT ILLUMINATED. REMOVED AND REPLACED RIGHT MLG DOWNLOCK SENSOR PER MT.