What was found
DURING NORMAL INSPECTION, CYCLED LANDING GEAR. HEARD A SQUEAL FOLLOWED BY APOP FROM THE RT MAIN LANDING GEAR, FOUND THAT THE LANDING GEAR HYD ACTUATOR ATTACH BEARING WAS FROZEN CAUSING THE ACTUATOR HOUSINGS AROUND THE BEARING TO BREAK AND PULL APART. DURING THE RETRACTION CYCLE. RECOMMEND: INSPECTION AND LUBEING THESE AREAS AT MORE FREQUENT INTERVALS (AT OIL CHANGES). NOTE: INSPECTED LT SIDE, BEARING WAS GOOD. INSPECTED A SECOND AC FOUND BOTH MAIN GEAR ACTUATOR BEARINGS FROZEN, LUBED AND WORKED FREE.