Casualties unknown

2007-07-10: Bell 47G-5 (N8140J) — Jesup, IA

Jesup, IA, US

On July 10, 2007, a Bell 47G-5 (registration N8140J) was involved in an aviation accident near Jesup, IA. Investigators recorded the probable cause as: Loss of control when the helicopter encountered a whirlwind on takeoff. 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 1781061362Data APIEditorial standards

A helicopter impacted the ground and came to rest upside down after the pilot encountered a whirlwind during takeoff from a cornfield. The pilot had resumed flight after stopping spraying due to increased winds.

Incident Overview

A helicopter sustained damage after striking the ground and coming to rest inverted in a cornfield. The accident occurred during a takeoff when the aircraft encountered a whirlwind, leading to a loss of control.

Pilot Report

The pilot reported that he had stopped spraying operations because the winds had increased. After landing and consulting with his ground crew, he decided to fly the helicopter back to his home airport. At the time, local winds were from the west-southwest at 12 mph, gusting to 20 mph.

He took off over a cornfield. Just after passing through translational lift, he noticed a whirlwind in front and slightly to his left. He stated that the next thing he knew, he was inside the whirlwind. The helicopter began to shake and then rolled to the right.

Aftermath

The helicopter came to rest upside down in the cornfield. No information about injuries or fatalities was provided in the source.

Probable cause

Loss of control when the helicopter encountered a whirlwind on takeoff.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20070829X01270. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.