Casualties unknown

1994-07-10: Aerospatiale AS 350B-2 (N95LG) — Rocky Mountain Helicopters Inc — Granite, CO

Granite, CO, US

On July 10, 1994, an Aerospatiale AS 350B-2 (registration N95LG) operated by Rocky Mountain Helicopters Inc was involved in an aviation accident near Granite, CO. Investigators recorded the probable cause as: FAILURE OF THE PILOT TO ASSURE MAIN ROTOR CLEARANCE FROM SLOPING TERRAIN WHILE IN A HOVER. THE TERRAIN CONDITION WAS A RELATED FACTOR. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 6 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

An air ambulance helicopter struck rocks with its main rotor while attempting a high-altitude mountain rescue, then crashed and tumbled about 800 feet down the slope.

Incident Overview

An air ambulance (EMS) helicopter was dispatched to evacuate an injured hiker from a mountain with an elevation of approximately 14,000 feet. The intended pickup point was situated at an elevation of about 12,200 feet on a slope angled at roughly 35 degrees.

Rescue Attempt

Ground rescue personnel reported that the pilot informed them he would place the helicopter's right skid on the mountain slope. This maneuver was intended to allow the rescuers to load the patient on the downhill side of the aircraft. As the helicopter hovered above the rescue team, the main rotor blades struck rocks.

Accident Sequence

Following the rotor strike, the helicopter passed over the heads of the ground personnel, crashed, and subsequently tumbled approximately 800 feet down the mountain.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001206X01729. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.