Aircraft collision with mountainous terrain during night flight

Casualties unknown • Neihart, MT, US

A non-scheduled VFR flight ended in a high-energy impact with a mountain slope at approximately 9,100 feet MSL during night conditions.

What happened

During the return leg of a non-scheduled 14 CFR Part 135 VFR cross-country flight, an aircraft collided with mountainous terrain. Prior to the accident, the pilot had notified air traffic control that the flight was operating under visual flight rules (VFR) and was level at 8,500 feet MSL. The accident occurred during dark night conditions.

The aircraft struck the south-facing slope of a mountain at an elevation of approximately 9,100 feet above mean sea level. The crash site was located near the last recorded radar position of the flight.

The investigation

Examination of the wreckage and impact signatures at the crash site indicated a high energy and shallow impact with the terrain. The investigation revealed no evidence of any mechanical problems with the aircraft.

Probable cause

The aircraft collided with mountainous terrain during night flight under visual flight rules.

Frequently asked questions

What happened in the 2004-08-18 Beech BE-99 accident near Neihart, MT?

A non-scheduled VFR flight ended in a high-energy impact with a mountain slope at approximately 9,100 feet MSL during night conditions.

What aircraft was involved and where did it happen?

The accident on 2004-08-18 involved a Beech BE-99, registration N199GL, at Neihart, MT.

What was the probable cause of the accident?

The aircraft collided with mountainous terrain during night flight under visual flight rules.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20040825X01285. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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