Narrative:

Flew C170 off farm strip 240 degrees 13 NM off ahn VORTAC to do some practice stop-and-goes at athens ben epps airport. Approximately 5.4 NM from ahn, I wanted to see if a friend was home, so I reduced power and pulled carburetor heat to 'on.' the engine felt like it had shut down. I tried to get carburetor heat off, throttle back in, mixture in, switched tanks, tried the starter but to no avail. I had the ben epps tower on radio (126.3) to get permission to enter the class D airspace, so I transmitted my problem to them: 'athens tower, XXXX has engine failure. I'll have to put it down.' also told tower my position. Tower requested I stay on frequency to let them know if I made it down ok. Other than my knees knocking together, I made it over a power line and fence to a smooth landing without damage to myself, aircraft or property. The next day the a&P mechanic found 7 small round acorns that were sucked into the carburetor venturi tube when I pulled the carburetor heat on. There were 15 more acorns still in the air box. The engine log entry 'power loss' was signed off by a&P mechanic. Aircraft put back together and checked out as airworthy. After the power line was lowered, I checked out the aircraft and engine to my satisfaction and flew the aircraft on to a belated landing at athens ben epps airport.

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Original NASA ASRS Text

Title: C170 PLT MADE OFF ARPT FORCED LNDG DUE TO ENG FAILURE. THERE WAS NO ACFT OR PROPERTY DAMAGED OR PERSONAL INJURIES.

Narrative: FLEW C170 OFF FARM STRIP 240 DEGS 13 NM OFF AHN VORTAC TO DO SOME PRACTICE STOP-AND-GOES AT ATHENS BEN EPPS ARPT. APPROX 5.4 NM FROM AHN, I WANTED TO SEE IF A FRIEND WAS HOME, SO I REDUCED PWR AND PULLED CARB HEAT TO 'ON.' THE ENG FELT LIKE IT HAD SHUT DOWN. I TRIED TO GET CARB HEAT OFF, THROTTLE BACK IN, MIXTURE IN, SWITCHED TANKS, TRIED THE STARTER BUT TO NO AVAIL. I HAD THE BEN EPPS TWR ON RADIO (126.3) TO GET PERMISSION TO ENTER THE CLASS D AIRSPACE, SO I XMITTED MY PROB TO THEM: 'ATHENS TWR, XXXX HAS ENG FAILURE. I'LL HAVE TO PUT IT DOWN.' ALSO TOLD TWR MY POS. TWR REQUESTED I STAY ON FREQ TO LET THEM KNOW IF I MADE IT DOWN OK. OTHER THAN MY KNEES KNOCKING TOGETHER, I MADE IT OVER A PWR LINE AND FENCE TO A SMOOTH LNDG WITHOUT DAMAGE TO MYSELF, ACFT OR PROPERTY. THE NEXT DAY THE A&P MECH FOUND 7 SMALL ROUND ACORNS THAT WERE SUCKED INTO THE CARB VENTURI TUBE WHEN I PULLED THE CARB HEAT ON. THERE WERE 15 MORE ACORNS STILL IN THE AIR BOX. THE ENG LOG ENTRY 'PWR LOSS' WAS SIGNED OFF BY A&P MECH. ACFT PUT BACK TOGETHER AND CHKED OUT AS AIRWORTHY. AFTER THE PWR LINE WAS LOWERED, I CHKED OUT THE ACFT AND ENG TO MY SATISFACTION AND FLEW THE ACFT ON TO A BELATED LNDG AT ATHENS BEN EPPS ARPT.

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.