Casualties unknown

Agricultural Plane Strikes High Voltage Wire During Herbicide Application (N641U)

Williams, CA, US

On June 7, 1982, a Grumman G-164 (registration N641U) operated by Thayer Avia. was involved in an aviation accident near Williams, CA. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

While applying granular herbicide to a rice field, a pilot crossed low voltage wires and attempted to fly under high voltage lines. Sunglare and wing obstruction reduced visibility, leading to a wire strike and crash.

Incident Overview

A pilot was conducting an aerial application of granular herbicide over a rice field. The field was bordered on the west by low voltage wires, with high voltage lines running diagonally across the area. During a pass from west to east, the pilot crossed over the low voltage wires and lowered the aircraft's nose in an attempt to fly under the high voltage lines.

Pilot's Account

According to the pilot, his vision was partially impaired by sunglare reflecting off his goggles. Additionally, his line of sight was obstructed by the top wing of the aircraft. Because of these visibility limitations, the aircraft struck a high voltage wire and subsequently crashed in the rice field.

Aftermath

The aircraft came to rest in the rice field following the collision with the high voltage line. No further details about the pilot or the extent of damage are available from the source.

Frequently asked questions

What happened in the 7 Jun 1982 Grumman G-164 accident near Williams, CA?

While applying granular herbicide to a rice field, a pilot crossed low voltage wires and attempted to fly under high voltage lines. Sunglare and wing obstruction reduced visibility, leading to a wire strike and crash.

What aircraft was involved and where did it happen?

The accident on 7 Jun 1982 involved a Grumman G-164, registration N641U, operated by Thayer Avia., at Williams, CA.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20020917X03636. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.