Narrative:

While on with approach inbound on the 040 degree radial from the gfk VOR, my student and I were cruising at 2500 ft at about 9 mi north of the gfk airport. Encountered a very sudden rough running engine followed by a partial loss of power. Completed the items on the emergency engine failure checklist with no change with engine situation. Set the plane up for a power off landing on a road heading west.

Google
 

Original NASA ASRS Text

Title: A C152 WITH A STUDENT AND INSTRUCTOR PLT ON BOARD IS FORCED TO PERFORM AN OFF ARPT EMER LNDG WHEN THE ENG LOSES PWR 9 MI NE OF GFK, ND.

Narrative: WHILE ON WITH APCH INBOUND ON THE 040 DEG RADIAL FROM THE GFK VOR, MY STUDENT AND I WERE CRUISING AT 2500 FT AT ABOUT 9 MI N OF THE GFK ARPT. ENCOUNTERED A VERY SUDDEN ROUGH RUNNING ENG FOLLOWED BY A PARTIAL LOSS OF PWR. COMPLETED THE ITEMS ON THE EMER ENG FAILURE CHKLIST WITH NO CHANGE WITH ENG SIT. SET THE PLANE UP FOR A PWR OFF LNDG ON A ROAD HDG W.

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.