Narrative:

Aircraft was on IFR training flight from akron/canton regional airport to lima/allen county, oh. We were in IMC in cruise 6000 MSL. Aircraft developed an unusual vibration and lost power. We began descending and requested a heading to the nearest airport. Leaving 3000', engine failed totally. We continued our descent in VMC, selected a wheat field and landed. No further damage, no injuries. Investigation showed massive internal failure of crankshaft, connecting rods, cylinder, and push rods. Descent and landing was accomplished without amended clearance or emergency declaration.

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Original NASA ASRS Text

Title: LIGHT SINGLE ENGINE ACFT TRAINING IN IMC HAS ENGINE FAILURE, SUCCESSFUL FORCED LNDG.

Narrative: ACFT WAS ON IFR TRAINING FLT FROM AKRON/CANTON REGIONAL ARPT TO LIMA/ALLEN COUNTY, OH. WE WERE IN IMC IN CRUISE 6000 MSL. ACFT DEVELOPED AN UNUSUAL VIBRATION AND LOST POWER. WE BEGAN DESCENDING AND REQUESTED A HDG TO THE NEAREST ARPT. LEAVING 3000', ENGINE FAILED TOTALLY. WE CONTINUED OUR DSCNT IN VMC, SELECTED A WHEAT FIELD AND LANDED. NO FURTHER DAMAGE, NO INJURIES. INVESTIGATION SHOWED MASSIVE INTERNAL FAILURE OF CRANKSHAFT, CONNECTING RODS, CYLINDER, AND PUSH RODS. DSCNT AND LNDG WAS ACCOMPLISHED WITHOUT AMENDED CLRNC OR EMER DECLARATION.

Data retrieved from NASA's ASRS site as of August 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.