Aircraft impact during VFR approach in mountainous terrain

2 fatalities • Hailey-Friedman Memorial, United States of America • Landing (descent or approach)

A flight ended in a fatal collision with a mountain ridge while the crew attempted a visual approach to an airport under obscured conditions.

What happened

During an attempt to land at an airport located within a narrow mountain valley, an aircraft struck a ridge at an elevation of approximately 6,250 feet MSL. The airport, which lacks an instrument approach procedure, has a field elevation of 5,315 feet MSL. At the time of the accident, the surrounding landscape and terrain were covered in snow.

The crew had previously canceled their IFR clearance and were attempting to complete the landing under VFR conditions. However, broken clouds obscured much of the nearby terrain. While a minimum visibility of one mile was required for the approach, the aircraft descended below the cloud layer near the airfield while portions of the landscape remained hidden by low ceilings. Witness accounts suggest the pilot proceeded with the approach despite being improperly positioned for a safe landing and remaining beneath the cloud base.

The impact occurred roughly 2.5 miles from the destination airport. The accident resulted in two fatalities.

Findings

Investigations into the crash identified several contributing factors related to the flight environment and decision-making. Key findings include:

  • Improper in-flight planning and decision-making by the pilot in command.
  • Failure to adhere to established VFR procedures.
  • Encountering hazardous weather conditions, specifically low ceilings and cloud cover.
  • Navigating through high, mountainous terrain under obscured visibility.
  • The presence of snow-covered terrain at the time of the event.

Probable cause

The pilot's decision to continue a visual approach into mountainous terrain while flying below the cloud ceiling led to an encounter with obscured obstacles.

Frequently asked questions

What happened in the 1983-01-03 Canadair CL-600 Challenger accident near Hailey-Friedman Memorial, United States of America?

A flight ended in a fatal collision with a mountain ridge while the crew attempted a visual approach to an airport under obscured conditions.

Were there any fatalities in the 1983-01-03 Canadair CL-600 Challenger accident?

The accident was fatal, resulting in 2 fatalities.

What aircraft was involved and where did it happen?

The accident on 1983-01-03 involved a Canadair CL-600 Challenger, registration N805C, operated by A. E. Staley Manufacturing Company, at Hailey-Friedman Memorial, United States of America.

What was the probable cause of the accident?

The pilot's decision to continue a visual approach into mountainous terrain while flying below the cloud ceiling led to an encounter with obscured obstacles.

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