What was found
PDIS 575 32-30 7353 11MAY19 MEM OPEN U LOGPAGES:2867635 RT MAIN GEAR TOOK UNUSUALLY LONG TIME TO RETRACT AFTER TAKEOFF, THEN CAME UP SO HARD IT SHOOK THE ENTIRE PLANE AND KNOCKED OFF AUTOPILOT. SHGN 11MAY19 07:54 MEM U OPENED RT GEAR DOOR REF AMM 32-34-00-2 AND PERFORMED GVI OF WHEELWELL AREA. NO OBVIOUS DEFECTS NOTED IN WHEEL WELL OR OPERATION OF DOOR. NEXT STEP OF FIM/FRM 32-30-15 IS TO TEST RETRACT TIME. COMPLETED INSTALL OF RT MAIN LANDING GEAR RETRACT ACTUATOR STARTING AND INCLUDING INCLUDING STEP 3.G.(4)D. REF AMM 32-33-20-4. PERFORMED GEAR SWING TIME CHECK IAW AMM 32-31-00-5. ALL GEAR RETRACTED IN 12 SECONDS (13 SECOND LIMIT). THE NOSE GEAR EXTENDED IN 19 SECONDS (17-22 SECOND LIMIT), CENTER GEAR EXTENDED IN 16 SECONDS (14-18 SECOND LIMIT) AND THE MAIN GEAR WERE BOTH EXTENDED IN 22 SECONDS (19-23 SECOND LIMIT). NO UNUSUAL SHAKING DETECTED. OPS CHECK GOOD. OK FOR SERVICE.