What was found
RIGHT MLG DID NOT EXTEND INTO THE DOWN AND LOCKED POSITION. RT GEAR LEG WAS IN TRAIL WHEN ACFT LANDED WITH THE NOSE GEAR AND LT MAIN DOWN AND LOCKED. CAUSED ACFT TO VEER TO THE RT ON LANDING, CAUSING DAMAGE TO THE RT WINGTIP AND HORIZONTAL STABILIZER AND RT ELEVATOR. JACKING THE ACFT, FOUND THE RT GEAR LEG DISCONNECTED FROM THE PIVOT ASSY BECAUSE OF A SHEARED SHAFT ON THE ACTUATOR ASSEMBLY. THIS WAS THE CAUSE OF THE GEAR NOT LOCKING INTO THE GEAR DOWN POSITION. THE CAUSE OF THE SHEARED SHAFT IS YET TO BE DETERMINED.