Narrative:

Earlier in the day, I had topped off both tanks and then flew for 2.2 hours, leaving me with the tanks half full. I did a flight plan from mkc to 5c8 (coffey county kansas) to do a touch-and-go at 5c8 then directly back to mkc. The distance between mkc to 5c8 is 74 NM. The winds were directly from the south at 9-15 KTS at the surface and 27 KTS above 6000 ft. I had planned the trip out to take 1:45 long. After flying for 2.2 hours earlier, I assumed that the plane would be fine for a 1 hour and 40 min trip with half tanks. I failed to do my math. Not realizing that the plane only had around 11.25 gallons and it burns around 6 per hour. The trip went fine until I was about 5 or 6 mi inbound for mkc. I was cleared to enter into a mid downwind. Pattern altitude is 1800 ft MSL and I was descending at 2000 ft when I hit some turbulence and the engine cut out. I pushed the throttle back in and the engine started back up, then hit some more and then the engine went out for good. I then set up for an engine out emergency landing. I told the controller my situation and then landed in a clear field with little problems and with very little damage to the plane.

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Original NASA ASRS Text

Title: PLT OF AN SMA SEL TRAINING ACFT RAN OUT OF FUEL AND WAS FORCED TO LAND SHORT OF THE ARPT RESULTING IN VERY LITTLE DAMAGE TO THE ACFT.

Narrative: EARLIER IN THE DAY, I HAD TOPPED OFF BOTH TANKS AND THEN FLEW FOR 2.2 HRS, LEAVING ME WITH THE TANKS HALF FULL. I DID A FLT PLAN FROM MKC TO 5C8 (COFFEY COUNTY KANSAS) TO DO A TOUCH-AND-GO AT 5C8 THEN DIRECTLY BACK TO MKC. THE DISTANCE BTWN MKC TO 5C8 IS 74 NM. THE WINDS WERE DIRECTLY FROM THE S AT 9-15 KTS AT THE SURFACE AND 27 KTS ABOVE 6000 FT. I HAD PLANNED THE TRIP OUT TO TAKE 1:45 LONG. AFTER FLYING FOR 2.2 HRS EARLIER, I ASSUMED THAT THE PLANE WOULD BE FINE FOR A 1 HR AND 40 MIN TRIP WITH HALF TANKS. I FAILED TO DO MY MATH. NOT REALIZING THAT THE PLANE ONLY HAD AROUND 11.25 GALLONS AND IT BURNS AROUND 6 PER HR. THE TRIP WENT FINE UNTIL I WAS ABOUT 5 OR 6 MI INBOUND FOR MKC. I WAS CLRED TO ENTER INTO A MID DOWNWIND. PATTERN ALT IS 1800 FT MSL AND I WAS DSNDING AT 2000 FT WHEN I HIT SOME TURB AND THE ENG CUT OUT. I PUSHED THE THROTTLE BACK IN AND THE ENG STARTED BACK UP, THEN HIT SOME MORE AND THEN THE ENG WENT OUT FOR GOOD. I THEN SET UP FOR AN ENG OUT EMER LNDG. I TOLD THE CTLR MY SIT AND THEN LANDED IN A CLR FIELD WITH LITTLE PROBS AND WITH VERY LITTLE DAMAGE TO THE PLANE.

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.