Narrative:

Normal approach to runway 18 at W00, left traffic. Airspeed and glide path on final were normal. As I started my roundout (or flare), I flew through some turbulence and downdraft. I added power to arrest the descent, but the aircraft didn't respond fast enough and a passing tractor trailer on route 50 at the end of the runway hit the right main landing gear and sheared it off. Only hearing a small 'thump,' I continued the flare to landing. About 600 ft down the runway the right wing settled on the runway and bent the propellers. At that time, I realized the right main was not there. I shut down both engines on the runway and did the emergency checklist to secure the aircraft. No injuries, damage to propeller, gear flap, aileron, wing root.

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Original NASA ASRS Text

Title: SMA TWIN HITS TRUCK WITH R GEAR ON FINAL, LANDS WITH R GEAR MISSING. ACFT DAMAGED. NON TWR ARPT.

Narrative: NORMAL APCH TO RWY 18 AT W00, L TFC. AIRSPD AND GLIDE PATH ON FINAL WERE NORMAL. AS I STARTED MY ROUNDOUT (OR FLARE), I FLEW THROUGH SOME TURB AND DOWNDRAFT. I ADDED PWR TO ARREST THE DSCNT, BUT THE ACFT DIDN'T RESPOND FAST ENOUGH AND A PASSING TRACTOR TRAILER ON RTE 50 AT THE END OF THE RWY HIT THE R MAIN LNDG GEAR AND SHEARED IT OFF. ONLY HEARING A SMALL 'THUMP,' I CONTINUED THE FLARE TO LNDG. ABOUT 600 FT DOWN THE RWY THE R WING SETTLED ON THE RWY AND BENT THE PROPS. AT THAT TIME, I REALIZED THE R MAIN WAS NOT THERE. I SHUT DOWN BOTH ENGS ON THE RWY AND DID THE EMER CHKLIST TO SECURE THE ACFT. NO INJURIES, DAMAGE TO PROP, GEAR FLAP, AILERON, WING ROOT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.