Narrative:

Engine started to run rough on base leg. I switched fuel and thought I would still make airport. It then looked doubtful if I would make it over fence and ditch. I pulled off power and landed, but hit hard and damaged aircraft. I should have landed as soon as engine started to run rough. The grass crosswind runway at airport was closed due to wet conditions and the field below me looked like it was disked and I thought it would be soft and I would nose over. It was a good place to land and if I had made a good approach I should have made a good landing with no trouble. Aircraft was equipped with lake injector and no carburetor heat. Heat should be add to engine when it is repaired. My medical had expired in 1/91. I don't believe this had any effect an accident and will be getting another medical as soon as I can get an appointment.

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Original NASA ASRS Text

Title: LOSS OF POWER ON ENGINE OF SMA. HARD LNDG DAMAGED ACFT.

Narrative: ENG STARTED TO RUN ROUGH ON BASE LEG. I SWITCHED FUEL AND THOUGHT I WOULD STILL MAKE ARPT. IT THEN LOOKED DOUBTFUL IF I WOULD MAKE IT OVER FENCE AND DITCH. I PULLED OFF PWR AND LANDED, BUT HIT HARD AND DAMAGED ACFT. I SHOULD HAVE LANDED AS SOON AS ENG STARTED TO RUN ROUGH. THE GRASS XWIND RWY AT ARPT WAS CLOSED DUE TO WET CONDITIONS AND THE FIELD BELOW ME LOOKED LIKE IT WAS DISKED AND I THOUGHT IT WOULD BE SOFT AND I WOULD NOSE OVER. IT WAS A GOOD PLACE TO LAND AND IF I HAD MADE A GOOD APCH I SHOULD HAVE MADE A GOOD LNDG WITH NO TROUBLE. ACFT WAS EQUIPPED WITH LAKE INJECTOR AND NO CARB HEAT. HEAT SHOULD BE ADD TO ENG WHEN IT IS REPAIRED. MY MEDICAL HAD EXPIRED IN 1/91. I DON'T BELIEVE THIS HAD ANY EFFECT AN ACCIDENT AND WILL BE GETTING ANOTHER MEDICAL AS SOON AS I CAN GET AN APPOINTMENT.

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.