What was found
A GEAR DISAGREE WARNING AND THE RIGHT MAIN GEAR WAS NOT DOWN, AFTER CYCLING THE LANDING GEAR, ALL THREE WERE DOWN AND LOCKED. LANDED WITHOUT INCIDENT. (FLT 4564) REPLACED RIGHT MLG SIDESTAY ACTUATOR IAW AMM. OPS CHECK GOOD. MANUAL GEAR RELEASE CHECKS GOOD IAW AMM. P/N: 17008-109 S/N: 01223 P/N OFF: 17008-115 S/N OFF: 01188 / P/N: 17014-3 S/N: 1698 S/N OFF: 1662 P/N: 17027-7 S/N: 7724 S/N OFF: 7194 P/N: 17028-3 S/N: 1238 S/N OFF: 1171