What was found
AFTER TAKEOFF, RIGHT MAIN LANDING GEAR UNSAFE LIGHT CAME ON, CYCLED GEAR AND VERIFIED IN DOWN AND LOCKED POSITION. AIRCRAFT LANDED WITHOUT INCIDENT. INSPECTED RIGHT MAIN LANDING GEAR, FOUND RT AFT STRUT SHOE FACINGS DEFECTIVE AND RT FORWARD STRUT BALL SCREW HAD METAL CHIPS ON BALL NUT. REPLACED AFT MLG SHOES AND FORWARD BALL SCREW ON RHS, PERFORMED GEAR RETRACTION SYSTEM, OPS CHECKED GOOD.