Narrative:

Had sudden engine stoppage due to low oil pressure. After observing normal pressure 1 1/2 mins prior to seeing no oil pressure, I realized an emergency landing would be necessary. I was already in contact with ptk ATC. Having contacted them 15 out of ptk prior to attempting to land there, I informed them at approximately 10 mi out of loss of oil pressure. Shortly after that, realized that I wouldn't be able to make it to the airport and updated them to that fact. As there were no ideal landing spots nearby (a swamp, trees) a major divided highway seemed the best place to land. After checking traffic flow, I began to blend in between 2 spaced out vehicles while watching for power lines and other obstructions after my turn to final. Because of my low wing plane, I could no longer observe second vehicle that I landed in front of. I touched the roof of this vehicle causing minor damage to its roof (a van) then proceeded to land as planned behind the other car. Light damage was experienced to my plane. Horizontal stabilizer bent. Wheel pant damaged. 1 occupant of van unhurt. 3 persons in plane all were unhurt as well. Further investigation of engine revealed oil quick drain had come out. Engine had less than 10 hours since major overhaul and I feel that this could have not been properly tightened during overhaul.

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Original NASA ASRS Text

Title: EMER OFF ARPT LNDG PERFORMED AFTER SMA'S ENG IS ABOUT TO FAIL ACCOUNT NO OIL PRESSURE NO OIL.

Narrative: HAD SUDDEN ENG STOPPAGE DUE TO LOW OIL PRESSURE. AFTER OBSERVING NORMAL PRESSURE 1 1/2 MINS PRIOR TO SEEING NO OIL PRESSURE, I REALIZED AN EMER LNDG WOULD BE NECESSARY. I WAS ALREADY IN CONTACT WITH PTK ATC. HAVING CONTACTED THEM 15 OUT OF PTK PRIOR TO ATTEMPTING TO LAND THERE, I INFORMED THEM AT APPROX 10 MI OUT OF LOSS OF OIL PRESSURE. SHORTLY AFTER THAT, REALIZED THAT I WOULDN'T BE ABLE TO MAKE IT TO THE ARPT AND UPDATED THEM TO THAT FACT. AS THERE WERE NO IDEAL LNDG SPOTS NEARBY (A SWAMP, TREES) A MAJOR DIVIDED HWY SEEMED THE BEST PLACE TO LAND. AFTER CHKING TFC FLOW, I BEGAN TO BLEND IN BTWN 2 SPACED OUT VEHICLES WHILE WATCHING FOR PWR LINES AND OTHER OBSTRUCTIONS AFTER MY TURN TO FINAL. BECAUSE OF MY LOW WING PLANE, I COULD NO LONGER OBSERVE SECOND VEHICLE THAT I LANDED IN FRONT OF. I TOUCHED THE ROOF OF THIS VEHICLE CAUSING MINOR DAMAGE TO ITS ROOF (A VAN) THEN PROCEEDED TO LAND AS PLANNED BEHIND THE OTHER CAR. LIGHT DAMAGE WAS EXPERIENCED TO MY PLANE. HORIZ STAB BENT. WHEEL PANT DAMAGED. 1 OCCUPANT OF VAN UNHURT. 3 PERSONS IN PLANE ALL WERE UNHURT AS WELL. FURTHER INVESTIGATION OF ENG REVEALED OIL QUICK DRAIN HAD COME OUT. ENG HAD LESS THAN 10 HRS SINCE MAJOR OVERHAUL AND I FEEL THAT THIS COULD HAVE NOT BEEN PROPERLY TIGHTENED DURING OVERHAUL.

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.