What was found
LT MAIN GEAR LIGHT WOULD NOT ILLUMINATE ON LANDING. RED UNSAFE LIGHT WAS ON AND THE RT MAIN GEAR AND NOSE LIGHT WERE ON. DID THE LANDING GEAR NO EXTEND CHECK LIST AND LT GEAR LIGHT STILL WOULD NOT ILLUMINATE. ( BLEW GEAR DOWN) DID ROTARY TEST FOR THE GEAR AND THE LT GEAR BULBS CAME ON. WHEN WE WENT FROM FLAP 15 TO FLAP 35 THE GEAR WARNING HORN CAME ON AND WOUNDN'T GO OUT. AT ABOUT 200 FT AGL THE LT MAIN GEAR LIGHT CAME ON, HORN SILENCED AND WE LANDED SAFELY. REPLACED LT MLG ACTUATOR.