Grumman Acft Eng Cor-Schweizer G 164 N151QC accident near Malin, Oregon

Probable cause

The pilot’s misjudgment of the approach and his subsequent exceedance of the airplane’s critical angle of attack during an agricultural application flight, which resulted in an aerodynamic stall and collision with power lines.

NTSB analysis

The pilot reported that, during an agricultural application flight, he misjudged the approach and did not have enough clearance to avoid power lines. The airplane began to sink, and he pulled back on the flight control stick. Subsequently, the airplane aerodynamically stalled and then struck power lines.

The airplane sustained substantial damage to the fuselage, empennage, and both wings.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Text from the NTSB. Open the NTSB docket for GAA18CA383 for the full record.