What was found
(CAN) ON LANDING ROLL, GEAR DOOR OPEN LIGHT ON, LT GEAR DOOR OPEN CONFIRMED BY TOWER. MAINTENANCE CHECK FOUND CABLE OF LT MAIN GEAR DOOR SEQUENCE STIFF AND TORQUE TUBE RIVET SHEARED. CABLE CLEANED AND LUBRICATED, REPLACED DOOR AND RIVET, FOLLOW-UP CABLE RIGGING CHECKED AND RETRACTION TEST CARRIED OUT.