No fatalities

18 May 2014: BELL 47G — Bakersfield, CA

Bakersfield, CA, United States

On 18 May 2014, a BELL 47G was involved in an aviation accident near Bakersfield, CA. No fatalities were reported. Investigators recorded the probable cause as: The pilot's failure to maintain aircraft control after the helicopter's skid catching on the side of a trailer during takeoff, which resulted in a dynamic rollover. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A helicopter experienced a dynamic rollover when a landing gear skid bolt caught on aluminum trailer skirting during liftoff from a trailer. The aircraft came to rest on its right side, and a subsequent fire consumed the cabin.

Incident Overview

According to the pilot, the flight was intended to reposition the helicopter from a trailer onto the ground. As the helicopter began its vertical takeoff from the trailer platform, a steel bolt on one of the landing gear skids became entangled with the aluminum skirting of the trailer. This entanglement initiated a dynamic rollover, causing the helicopter to tip over and settle on its right side. Shortly thereafter, a fire broke out and engulfed the cabin area, resulting in its complete destruction.

The pilot reported that there were no preimpact mechanical malfunctions or failures with the helicopter that would have prevented normal operation. No other details regarding the helicopter type, registration, or occupants were provided in the source.

Sequence of Events

The maneuver involved lifting the helicopter off a trailer platform. During liftoff, the landing gear skid's steel bolt made contact with the trailer's aluminum skirting, leading to the dynamic rollover. The helicopter came to rest on its right side, and a fire quickly erupted, consuming the cabin structure.

Pilot Statement

The pilot explicitly stated that no mechanical issues existed with the helicopter prior to the accident that could have contributed to the loss of control or the subsequent fire.

Contributing factors

Aux gear (tail/rotorcrft skid)PilotLateral/bank control — Not attained/maintained