PVT PLT OF AN SMA SEL ACFT LANDED GEAR UP DUE TO THE MECHANICAL FAILURE OF THE GEAR TO EXTEND ELECTRICALLY. IN ADDITION; THE VFR FLT PLAN WAS NOT RPTED CLOSED AND A SEARCH WAS STARTED.

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I SWITCHED THE FUEL SELECTOR TO THE R TANK; TIGHTENED MY BELT AND SHOULDER HARNESS; MOVED THE THROTTLE TO 18 IN HG AND NOTICED THAT THE AIRSPD WAS DOWN TO 105 MPH; SO I LOWERED THE LNDG GEAR KNOB TO THE DOWN POS. I FELT A LURCH AND SAW THAT THE 3 GREEN INDICATOR LIGHTS WERE IT. NEXT; I PLACED THE MIXTURE CTL TO THE FORWARD; FULL RICH POS. I MOVED THE PROP CTL TO THE FULL FORWARD POS; THE AIRSPD WAS DOWN TO 105 MPH AND THE ALTIMETER INDICATED 1500 FT SO I TRIMMED THE ACFT; TURNED THE LNDG LIGHTS ON AND THE STROBE LIGHT OFF. I SAW NO TFC ANYWHERE AROUND 3T5. I ANNOUNCED TO FAYETTE TFC THAT I WAS APCHING MIDFIELD FROM THE E AT 1500 FT AND WOULD ENTER THE L DOWNWIND RWY 34 AT 1125 FT PATTERN ALT. I ENTERED THE DOWNWIND AND ANNOUNCED TO TFC. I MAINTAINED 100 MPH AIRSPD AND TRIMMED TO THAT SPD. I SAW AND REPEATED ALOUD '3 IN THE GREEN (PHYSICALLY CHKED); MIXTURE FORWARD; AND PROP FORWARD.' ABREAST OF THE RWY 34 NUMBERS I LOWERED THE FLAPS TO THE 15 DEG POS AND AGAIN FELT A LURCH. I TURNED TO THE L BASE RWY 34 AND ANNOUNCED TO TFC. I SAW AND REPEATED ALOUD '3 IN GHE GREEN (PHYSICALLY CHKED) MIXTURE. I MAINTAINED 100 MPH AIRSPD. I TURNED FINAL; ANNOUNCED AND SPECIFIED FULL STOP. I SAW AND REPEATED ALOUD '3 IN THE GREEN (PHYSICALLY CHKED); MIXTURE FORWARD; PROP FORWARD; AND FLAPS 15 DEGS.' I CHKED MY AIRSPD AND MAINTAINED 100 MPH AND KEPT ON THE RWY 34 CTRLINE AND KEPT MY R HAND ON THE THROTTLE. AT APPROX 450 FT ON THE ALTIMETER I SAW THAT I HAD 3 IN THE GREEN AND VISUALLY CHKED FORWARD MIXTURE AND FORWARD PROP AND FLAPS. A LITTLE PAST THE RWY 34 NUMBERS; I ROTATED WHERE THE WHEELS WOULD BE ABOUT 1-2 FT ABOVE THE RWY TO LET IT SETTLE TO A TOUCHDOWN. THE NEXT INSTANT I FELT AN UNUSUAL SINKING AND IMMEDIATELY NOTICED THE DEFORMATION OF THE PROP (GEARS UP). THINKING ABOUT SPARKS AND SUBSEQUENT FIRE; I TURNED OFF THE MASTER SWITCHES AND THE MAGNETOS SWITCH. I SWITCHED THE GAS TANKS TO OFF AND SWITCHED OFF THE AVIONICS. WHEN THE ACFT CAME TO A COMPLETE STOP ON THE RWY; I LEFT THE ACFT IN HASTE THROUGH THE R DOOR (SINCE I HAD BEEN USED TO FLYING AN ACFT THAT ONLY HAS A R SIDE DOOR) AND MOVED A SAFE DISTANCE AWAY FROM THE CRAFT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: RPTR STATED THAT THE ACFT HAD BEEN EXAMINED AND FOUND TO HAVE A GEAR EXTENSION PROB; THE GEAR WOULD NOT EXTEND OR RETRACT ELECTRICALLY. THE CLOSING OF THE FLT PLAN WAS VERIFIED BY THE RECORDING TAPES AT THE FAA FSS FACILITY RPTED BY THE RPTR. THEREFORE; THE FAA FSDO HAS CLASSIFIED THIS AS AN INCIDENT WITH NO BLAME TO THE PLT.