Aviation Accident Summaries

Aviation Accident Summary CEN11CA298

Greensburg, IN, USA

Aircraft #1

N18WY

AVIAT AIRCRAFT A-1C-180

Analysis

The pilot was practicing low approaches when he experienced a partial loss of engine power during climb out. He continued onto the downwind leg where he applied carburetor heat and determined the loss of power was a result of carburetor ice. The pilot shortened the downwind and base legs, and decided to land on the grass alongside the paved runway. He stated that the approach was high and fast and he was more comfortable landing on the grass as the airplane was equipped with tundra tires. The airplane nosed over during the landing when it contacted standing water on the grass. The right wing of the airplane was substantially damaged. A review of the FAA Carburetor Icing chart revealed the conditions were conducive to serious icing at descent power.

Factual Information

The pilot was practicing low approaches when he experienced a partial loss of engine power during climb out. He continued onto the downwind leg where he applied carburetor heat and determined the loss of power was a result of carburetor ice. The pilot shortened the downwind and base legs, and decided to land on the grass alongside the paved runway. The pilot stated the approach was high and fast, and he was more comfortable landing on the grass as the airplane was equipped with tundra tires. The airplane nosed over during the landing when it contacted standing water on the grass. The right wing of the airplane was substantially damaged. The outside air temperature was reported as 20 degrees Celsius and the was 18 degrees Celsius. A Transport Canada Carburetor Icing Chart indicates the conditions were conducive to serious carburetor icing at descent power.

Probable Cause and Findings

The pilot's decision to land on the grass which contained standing water. Contributing to the accident was the partial loss of power due to carburetor ice.

 

Source: NTSB Aviation Accident Database

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