What was found
DURING LANDING ROLLOUT LANDING GEAR AURAL WARNING SOUNDED ACCOMPANIED BY UNSAFE INDICATION OF RIGHT MAIN GEAR, LG LEVER DISAG WARNING ANNUNCIATION, AND LG NO DISPATCH CAUTION ANNUNCIATION. PULLED CLEAR OF RUNWAY AND CALLED MECHANIC TO INSPECT GEAR BEFORE TAXIING FURTHER. MECHANIC INDICATED THAT LAND GEAR DOWN LOCK WAS SHEARED OFF FROM THE GEAR.