No fatalities

29 May 2015: BELL 206 - B11 B — Hawkeye Helicopter — Caledonia, MI

Caledonia, MI, United States

On 29 May 2015, a BELL 206 - B11 B operated by Hawkeye Helicopter was involved in an aviation accident near Caledonia, MI. No fatalities were reported. Investigators recorded the probable cause as: A loss of tail rotor effectiveness while maneuvering at low altitude, resulting in a collision with trees. This summary draws on records from NTSB; 14 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A helicopter conducting a low-altitude power line inspection encountered a gust of wind during a right turn, lost tail rotor effectiveness, and descended into trees, sustaining substantial tail boom damage.

Incident Overview

A helicopter engaged in an aerial observation flight at low altitude to inspect power lines experienced a loss of control after encountering a gust of wind. The pilot was maneuvering to execute a right turn when the gust occurred, leading to a loss of tail rotor effectiveness. Despite efforts to regain control, the helicopter descended into the tree tops before the pilot could fully recover, eventually coming to rest in a tree.

Damage Assessment

The helicopter sustained substantial damage to its tail boom as a result of the impact with trees. No other damage was reported.

Pilot Report

The pilot reported that there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. The pilot did not indicate any contributing factors beyond the gust of wind and subsequent loss of tail rotor effectiveness.

Occupants

Two occupants were on board: the pilot and a passenger. No injuries were mentioned in the report.

Contributing factors

Causes

PilotProp/rotor parameters — Not attained/maintained

Other contributing factors

Contributed to outcomeEffect on operation