What was found
AT 10500' WHILE ON DESENT, SPOILERS WERE EXTENDED AND AILERONS WENT TO 2 UNITS RIGHT IN ORDER TO MAINTAIN STRAIGHT AND LEVEL FLIGHT. EICAS SPOILER MESSAGE SHOWED. RAN QRH CHECKLIST. USED FLAPS 20 FOR LANDING AND SPEED 170 FOR WIND ADDITIVE.(<P>FOUND # 6 SPOILER ACTUATOR VALVE STUCK IN OPEN POSITION. REPLACED SPOILER PCA IAW B-767 AMM 27-61-02-424-023.OPERATIONAL CHECK COMPLETED PER AMM 27-61-00/001, NO ISSUES FOUND. SPOILER RIGGED COMPLETED PER B-767 AMM 27-61-02-424-23, ALL CHECKS GOOD. BITE CHECKED SPOILER CTRL MODULE, NO ISSUES FOUND. REF FIM 27-09 FT 808.</P>)