What was found
PDIS 856 27-02 1015 16FEB21 MEM LOGPAGES:2781587 WITH AUTOPILOT OFF @ 500' ON FINAL, AIELRON CONTROL WAS LIMITED, CHECKED THAT AUTOPILOT WAS OFF AND CONFIRMED AIELRON CONTROL WAS VERY LIMITED, PITCH CONTROL WAS VERY HEAVY BUT USEABLE. LANDING WAS UNEVENTFUL . AFTER LANDING BOTH CAPT & F/O TRIED MOVING CONTROL COLUMN LEFT AND RIGHT AND UNABLE. ON FLIGHT CONTROL SYNOPTIC NO DISCREPENCES NOTED. 16FEB21 21:07 MEM NO INBD. FAULTS NOTED IN THE MAT. ACCOMPLISHED B777 FIM. PROCEDURE 27-11-00-810-852 AND FIM. PROCEDURE 27-31-00-810-866. NO FAULTS NOTED ALL TEST PASSED. ALSO IN REF. TO 777-FTD-27-06007, INSPECTED SPOILER 4 AND 11 PCA. PUSHRODS WITH NO DEFECTS NOTED.