As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR WARNING HORN SOUNDED 2 TIMES DURING ROLL OUT. FOLLOWED BY RT MAIN GEAR RED LIGHT FLASH. AIRCRAFT STOPPED AT TAXIWAY. INSPECTION FOUND R MAIN LANDING GEAR DOWNLOCK PROXIMITY SENSOR NOT GOOD. IAW AMM REPLACED THE SENSOR AND ADJ. CLEARANCE TO 0.070 INCH BETWEEN SENSOR AND TARGET. IAW AMM PERFORM FUNCTIONAL TEST RESULT SATISFY.