Casualties unknown

2007-07-31: Bell 206B (N9ZV) — Columbia, MO

Columbia, MO, US

On July 31, 2007, a Bell 206B (registration N9ZV) was involved in an aviation accident near Columbia, MO. Investigators recorded the probable cause as: The pilot's failure to maintain control of the helicopter, which resulted in impact with terrain during takeoff. A factor in the accident was the tall grass. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A helicopter was substantially damaged during takeoff when the pilot, flying from the left seat to maintain lateral CG after a passenger cancellation, sank and overcontrolled, leading to a forward tip and rollover.

Accident Sequence

The helicopter sustained substantial damage when it impacted terrain during takeoff. According to the pilot's account, the helicopter began "sinking toward the ground" shortly after lift-off, and the pilot reported "over controlling the cyclic." The helicopter's skids then contacted tall grass, causing the aircraft to tip "very far forward." The pilot attempted to level the helicopter using the cyclic, but the tail "fell rapidly," and the helicopter subsequently struck the ground and rolled over onto its right side.

Pilot Statement

The pilot stated that the helicopter was originally to be loaded with one passenger in the left seat and a 167 lb part behind the pilot. After the part was loaded, the pilot was informed that the passenger would not be riding in the helicopter. Due to a "time deadline," the pilot decided to operate the helicopter from the left seat instead of the right in order to "have a good lateral C.G." In his accident report, the pilot noted that the accident could have been prevented had he taken the time to get help to move the load to the co-pilot's side, as that would have resolved the lateral center of gravity issue and allowed him to fly from his normal position.

Post-Accident Observations

The helicopter came to rest on its right side after the rollover. No further details regarding the extent of damage were provided. The pilot did not report any injuries.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20070817X01205. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.