Casualties unknown

1983-07-18: Hiller UH-12E (N120NR) — Brooklyn Park, MN

Brooklyn Park, MN, US

On July 18, 1983, a Hiller UH-12E (registration N120NR) was involved in an aviation accident near Brooklyn Park, MN. 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 spraying a field encountered wires, struck a telephone line that became entangled in the controls, leading to a hard landing and rollover.

Incident Overview

A helicopter engaged in agricultural spraying operations was working the end rows of a field when it approached a set of wires. The pilot reported seeing the wires at the last moment and attempted to fly under them. The helicopter successfully passed below a set of power lines but struck a telephone line.

Sequence of Events

After striking the telephone line, the pilot initiated a landing. However, the wire became fouled in the helicopter's controls, making control difficult. The pilot reported that the helicopter touched down too fast, bounced twice, and then rolled over.

Pilot Report

According to the pilot, the helicopter was spraying the end rows of a field. The wires were not observed until the last second, prompting an attempt to go underneath. While the helicopter cleared the power lines, it impacted the telephone line. This line then became entangled in the control mechanisms, impairing the pilot's ability to maintain proper control during the subsequent landing attempt.

The pilot stated that the touchdown was faster than intended, resulting in two bounces before the helicopter rolled onto its side.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X43682. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.