Casualties unknown

2002-06-23: Bell 47G4 (N62446) — Grand Lake, LA

Grand Lake, LA, US

On June 23, 2002, a Bell 47G4 (registration N62446) was involved in an aviation accident near Grand Lake, LA. Investigators recorded the probable cause as: the pilot's inability to control the helicopter in a hover due to the restricted movement of the cyclic for undetermined reasons. 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 tilted forward during a low hover, then rolled right after cyclic binding; it caught fire and was destroyed.

Accident Overview

The pilot had just completed spray operations and was preparing to take two passengers to inspect a marsh area that had been sprayed. The helicopter, equipped with dual controls, prompted the pilot to caution the passengers not to touch any controls. While bringing the helicopter to a hover approximately 6 to 12 inches above the ground, the aircraft began to tilt forward.

Pilot Actions

The pilot applied aft cyclic input to correct the forward tilt, but the helicopter continued tilting forward. Attempting further aft cyclic, the pilot felt the cyclic control bind and could not move it any farther aft. In an effort to land, the pilot lowered the collective, but the helicopter then tilted to the right. The right skid contacted the ground, and the helicopter experienced a dynamic rollover.

Outcome

The helicopter came to rest on its right side, where a fire ensued. The aircraft was destroyed in the accident.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20020624X00961. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.