Casualties unknown

2006-02-15: Robinson R22 (N23617) — EL Monte, CA

EL Monte, CA, US

On February 15, 2006, a Robinson R22 (registration N23617) was involved in an aviation accident near EL Monte, CA. Investigators recorded the probable cause as: the pilot's inadequate compensation for the wind conditions, which resulted in the helicopter dynamically rolling over. 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 rolled onto its side during an attempted takeoff from an asphalt tarmac after encountering a strong gust of wind. The pilot reported no preimpact mechanical malfunctions.

Incident Overview

A helicopter experienced a rollover while attempting to take off from an asphalt tarmac. The pilot initiated the takeoff by raising the helicopter into a low hover with the skids barely contacting the surface. As he increased the collective pitch, the helicopter's nose became airborne first. To level the helicopter, the pilot applied forward cyclic input. At that moment, a strong gust of wind was encountered.

Rollover Sequence

After the gust, the helicopter stabilized temporarily. The pilot continued raising the collective, and the helicopter ascended to approximately three feet above ground level. The wind then pushed the helicopter backward. The nose pitched up, causing the left skid to contact the ground. The helicopter rolled backward to the left, rotating around the left skid as it impacted the tarmac.

Pilot Statement

The pilot stated that there were no preimpact mechanical malfunctions or failures with the helicopter. The entire sequence was attributed to the wind conditions encountered during the attempted departure.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20060310X00287. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.