What was found
AFTER SUCCESSFUL LANDING GEAR RETRACTION, BOTH LT AND RT WING LANDING GEAR CAME OUT OF THE WHEEL WELLS. BOTH GEAR FULLY LOCKED IN THE DOWN POSITION AND BOTH DOORS REMAINED OPEN, RETURNED TO HKG. CHECKED RIGGING AND CABLE TENSIONS OF WING GEAR SELECTOR VALVE, WING GEAR SELECTOR VALVE QUADRANT, WING GEAR DOOR OPERATED SEQUENCE VALVE ALTERNATE GEAR EXTENSION ELECTRIC MOTORS AND CABLES. ALL CHECKS FOUND SATISFACTORY WITHIN MAINTENANCE MANUAL LIMITS. ACCOMPLISHED GEAR SWING, COULD NOT DUPLICATE CONDITION AND AIRCRAFT RELEASED.