Casualties unknown

1999-08-15: Robinson R-22 (N4066G) — Helicopter Flight Training — Islip, NY

Islip, NY, US

On August 15, 1999, a Robinson R-22 (registration N4066G) operated by Helicopter Flight Training was involved in an aviation accident near Islip, NY. Investigators recorded the probable cause as: was the student pilot's improper control input and the flight instructor's delayed remedial action. 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

During a training flight, a student pilot performing hovering autorotations closed the throttle and applied incorrect pedal input, leading to a rollover and main rotor blade ground strike.

Event Details

A training flight involving a student pilot and an instructor was in progress. The flight was conducting hovering autorotations, a maneuver where the engine power is reduced to simulate an engine failure while in a hover.

Sequence of Events

The student pilot initiated the hovering autorotation by closing the throttle. During the maneuver, the student pilot applied left pedal input instead of the required right pedal input. This error aggravated the helicopter's natural left yaw tendency. As a result, the helicopter struck its left skid and began to roll to the left.

The instructor attempted to abort the maneuver by rolling on the throttle and lifting up on the collective. Despite this effort, the helicopter continued to roll. The main rotor blades subsequently struck the ground, and the helicopter came to rest on its left side.

No further details about the outcome or any injuries were provided in the source.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X19541. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.