Narrative:

On my flight in a C-182 at 7;000 ft MSL; 140 mph full throttle; about 1.5 miles north east of the field. I was on the 45 degrees to the down wind of runway 8. As I pushed over to start my descent to 6;400 ft I lost power to the engine. I trimmed for best glide and angled the plane for the middle of the runway. I then stated going though emergency producers. I checked fuel selector on both; then mixture full rich; magnetos on both. Then [I] tried pumping the throttle. None of this worked and by that time I saw that I was not going to make the runway so I aimed for the field. I landed diagonally in the field to get the most room to stop. I had in one notch of flaps. The landing was only a little bumpy. I used maximum brakes to come to a stop. The grass was wet so I skidded and couldn't stop fast. I was almost to a stop when I went through the wires of a barb wire fence. They broke easily and didn't cause damage. After coming to the stop I shut the plane down and got out. I was not harmed at all. I think that the carburetor might have iced over. I didn't get to that part of my emergency procedures before I landed. And the plane started up and ran fine the following day. What was strange is it happened while at full throttle; at the upper end of the green operating range of tack and manifold pressure. I was under the impression that the carburetor only iced over at when below the green operating range. The only thing that I can see to help prevent this from happening again would be to let pilots know that the carburetor can ice over even at full power and warm temperatures.

Google
 

Original NASA ASRS Text

Title: A C182 engine quit in a descent for landing and would not restart. The aircraft started normally later and the pilot remembered that he had not applied carburetor heat because he had a high power setting and assumed ice could not form.

Narrative: On my flight in a C-182 at 7;000 FT MSL; 140 MPH full throttle; about 1.5 miles north east of the field. I was on the 45 degrees to the down wind of Runway 8. As I pushed over to start my descent to 6;400 FT I lost power to the engine. I trimmed for best glide and angled the plane for the middle of the runway. I then stated going though emergency producers. I checked fuel selector on BOTH; then mixture FULL RICH; magnetos on BOTH. Then [I] tried pumping the throttle. None of this worked and by that time I saw that I was not going to make the runway so I aimed for the field. I landed diagonally in the field to get the most room to stop. I had in one notch of flaps. The landing was only a little bumpy. I used maximum brakes to come to a stop. The grass was wet so I skidded and couldn't stop fast. I was almost to a stop when I went through the wires of a barb wire fence. They broke easily and didn't cause damage. After coming to the stop I shut the plane down and got out. I was not harmed at all. I think that the carburetor might have iced over. I didn't get to that part of my emergency procedures before I landed. And the plane started up and ran fine the following day. What was strange is it happened while at full throttle; at the upper end of the green operating range of tack and manifold pressure. I was under the impression that the carburetor only iced over at when below the green operating range. The only thing that I can see to help prevent this from happening again would be to let pilots know that the carburetor can ice over even at full power and warm temperatures.

Data retrieved from NASA's ASRS site as of April 2012 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.