Summary
On August 13, 2010, a Bell 206B (N54BE) was involved in an incident near Rocky Mount, MO. All 1 person aboard were uninjured. The aircraft sustained substantial damage.
The National Transportation Safety Board determined the probable cause of this incident to be: A dynamic rollover inadvertently induced by the pilot during landing.
On August 13, 2010, about 1120 central daylight time, a Bell 206B helicopter, N54BE, piloted by an airline transport pilot, was substantially damaged during landing at the pilot's private helipad in Rocky Mount, Missouri. The personal flight was being conducted under 14 Code of Federal Regulations Part 91 without a flight plan. Visual meteorological conditions prevailed. The pilot, who was the sole occupant, was not injured. The helicopter departed Jefferson City Memorial Airport (JEF), Jefferson City, Missouri, about 1050.
The pilot reported that the approach and landing were normal. He stated that after landing, he lowered the collective and began to "roll off" the throttle.
This incident is documented in NTSB report CEN10LA477. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N54BE.
Accident Details
Probable Cause and Findings
A dynamic rollover inadvertently induced by the pilot during landing.
Aircraft Information
Registered Owner (Historical)
Analysis
On August 13, 2010, about 1120 central daylight time, a Bell 206B helicopter, N54BE, piloted by an airline transport pilot, was substantially damaged during landing at the pilot's private helipad in Rocky Mount, Missouri. The personal flight was being conducted under 14 Code of Federal Regulations Part 91 without a flight plan. Visual meteorological conditions prevailed. The pilot, who was the sole occupant, was not injured. The helicopter departed Jefferson City Memorial Airport (JEF), Jefferson City, Missouri, about 1050.
The pilot reported that the approach and landing were normal. He stated that after landing, he lowered the collective and began to "roll off" the throttle. However, before the throttle was completely off, the helicopter "suddenly rolled to the right." The aircraft came to rest on its right side with damage to the airframe, main rotor, and tail boom.
A post accident examination did not reveal any anomalies consistent with a pre-impact failure or malfunction. Flight control continuity was confirmed.
The pilot reported weather conditions as clear skies, with light and variable winds at the time of the accident. Weather conditions recorded at the Lee C. Fine Memorial Airport (AIZ), located about 14 miles southeast of the accident site, at 1115, included clear skies and winds from the southwest at 8 knots.
The Federal Aviation Administration (FAA) Rotorcraft Flying Handbook noted that helicopters are susceptible to a lateral rolling tendency referred to as dynamic rollover. The handbook stated that, "Dynamic rollover is possible even during takeoff and landings on relative level ground, if one wheel or skid is on the ground and thrust (lift) is approximately equal to the weight of the helicopter. If the takeoff or landing is not performed properly, a roll rate could develop around the wheel or skid that is on the ground."
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CEN10LA477