What was found
LANDING GEAR WON'T COME DOWN, CYCLED GEAR AND STILL NO GEAR DOWN. USED ALTERNATE GEAR HANDLE AND GEAR CAME DOWN AND LOCKED. PRESS OK, QTY OK. REPLACED CENTER GEAR CONTROL VALVE AS PER MM 32-31-04. REPLACED L/GEAR SELECTOR VALVE AS PER MM 32-31-03. PERFORMED EXTENSION AND RETRACTION OF GEAR AS PER MM 32-30-00, CHECKS NORMAL.