What was found
DFW - FLT 895 - EN ROUTE MCI-DFW - ON APPROACH TO DFW WHEN GEAR HANDLE WAS LOWERED AT 2,000 FEET, THE NOSE GEAR CAME LOWERED BUT BOTH MAIN LANDING GEARS DID NOT. LEVEL 3 WARNING ILLUMINATED BELOW 1,000 FEET. RAISED GEAR HANDLE AND NOSE GEAR RETRACTED. LOWERED GEAR HANDLE WHILE EXECUTING GO-AROUND AND ALL THREE GEARS CAME DOWN WITH THREE LIGHTS ILLUMINATED. LANDED DFW WITHOUT INCIDENT. REPLACED MAIN LANDING GEAR SELECTOR VALVE. ACCOMPLISHED GEAR SWING. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)