Grumman-Schweizer G-164C N6671K accident near De Witt, Arkansas

Probable cause

The pilot's improper decision to attempt to close the canopy in flight, and his diverted attention resulting in the airplane impacting the terrain. Contributing to the accident was the excessively worn canopy latch.

NTSB analysis

Shortly after initial takeoff for an aerial application flight, the airplane's canopy opened. At an altitude of approximately 300 feet above the ground the commercial pilot pulled the throttle back while attempting to close the canopy. After unsuccessfully trying to close the canopy, the pilot pushed the throttle back up but the engine did not respond fast enough to prevent the airplane from impacting the ground. Examination of the airplane revealed a bent firewall and both main landing gear were torn from the airplane. The canopy latch showed excessive wear and lacked any lubrication.

Text from the NTSB. Open the NTSB docket for DEN08CA089 for the full record.