Aviation Accident Summaries

Aviation Accident Summary WPR12CA271

Okanogan, WA, USA

Aircraft #1

N6861K

GRUMMAN ACFT ENG COR-SCHWEIZER G-164B

Analysis

The pilot reported that, while establishing the second boundary along the eastern edge of a field where he was conducting an aerial application, the airplane struck power lines. Following the collision with the power lines, the airplane turned to the left and impacted the ground in a flat attitude, which resulted in structural damage to all four wings and fuselage. The pilot stated that there were four sets of power lines near the field; however, the upper right wing blocked his view of the power lines that the airplane struck. No preimpact mechanical malfunctions were reported that would have precluded normal operation of the airplane.

Factual Information

The pilot reported that while establishing the second boundary along the eastern edge of a field where he was conducting an aerial application, the airplane struck power lines. Following the collision with the power lines, the airplane turned to the left and impacted terrain in a flat attitude, which resulted in structural damage to all four wings and fuselage. The pilot stated that there were four sets of power lines near the field; however, the upper right wing blocked his view from the power lines the airplane struck. No preimpact mechanical malfunctions were reported that would have precluded normal operation of the airplane.

Probable Cause and Findings

The pilot's failure to maintain clearance from power lines while maneuvering.

 

Source: NTSB Aviation Accident Database

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