Aviation Accident Summaries

Aviation Accident Summary SEA92LA056

DUFUR, OR, USA

Aircraft #1

N1763S

AERO COMMANDER S-2R

Analysis

THE PILOT WAS ENGAGED IN APPLYING HERBICIDE TO A WHEAT FIELD WHICH WAS CROSSED BY A DOUBLE SET OF POWER LINES. DURING A SWATH RUN AND WHILE FLYING EASTBOUND, THE AIRCRAFT'S CANOPY AND VERTICAL STABILIZER SNAGGED THE LOWEST SET OF WIRES WHICH WERE APPROXIMATELY 25 FEET ABOVE THE GROUND. THE AIRCRAFT WAS NOT EQUIPPED WITH AN UPPER FUSELAGE CABLE CUTTING SAFETY MECHANISM.

Probable Cause and Findings

THE PILOT IN COMMAND'S MISJUDGMENT OF CLEARANCE WITH THE POWER LINES. FACTORS CONTRIBUTING TO THE ACCIDENT WERE: OBJECT (TRANSMISSION WIRE) AND SAFETY SYSTEM (NOT INSTALLED).

 

Source: NTSB Aviation Accident Database

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