Polson - Butte

The descent to Butte Airport was started in poor weather conditions a zero visibility due to fog. While descending to an altitude of 6,060 feet, the airplane struck trees and crashed on the slope of a mountain located few miles from the airfield. The wreckage was found two days later and all four occupants have been killed. At the time of the accident, the airplane was flying at an insufficient altitude of 6,060 feet while the minimum safe altitude was about 8,000 feet.

Flight / Schedule

Polson - Butte

Aircraft

Learjet 24

Registration

N123CB

MSN

24-232

Year of Manufacture

1970

Date

April 17, 1971 at 04:15 PM

Type

CRASH

Flight Type

Private

Flight Phase

Landing (descent or approach)

Crash Site

Mountains

Crash Location

Butte Montana

Region

North America • United States of America

Coordinates

46.0132°, -112.5365°

Crash Cause

Human factor

Narrative Report

On April 17, 1971 at 04:15 PM, Polson - Butte experienced a crash involving Learjet 24, operated by F %26 S Contracting, with the event recorded near Butte Montana.

The flight was categorized as private and the reported phase was landing (descent or approach) at a mountains crash site.

4 people were known to be on board, 4 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.

Crew on board: 2, crew fatalities: 2, passengers on board: 2, passenger fatalities: 2, other fatalities: 0.

The listed crash cause is human factor. The descent to Butte Airport was started in poor weather conditions a zero visibility due to fog. While descending to an altitude of 6,060 feet, the airplane struck trees and crashed on the slope of a mountain located few miles from the airfield. The wreckage was found two days later and all four occupants have been killed. At the time of the accident, the airplane was flying at an insufficient altitude of 6,060 feet while the minimum safe altitude was about 8,000 feet.

Aircraft reference details include registration N123CB, MSN 24-232, year of manufacture 1970.

Geospatial coordinates for this crash are approximately 46.0132°, -112.5365°.

Fatalities

Total

4

Crew

2

Passengers

2

Other

0

Crash Summary

The descent to Butte Airport was started in poor weather conditions a zero visibility due to fog. While descending to an altitude of 6,060 feet, the airplane struck trees and crashed on the slope of a mountain located few miles from the airfield. The wreckage was found two days later and all four occupants have been killed. At the time of the accident, the airplane was flying at an insufficient altitude of 6,060 feet while the minimum safe altitude was about 8,000 feet.

Cause: Human factor

Occupants & Outcome

Crew On Board

2

Passengers On Board

2

Estimated Survivors

0

Fatality Rate

100.0%

Known people on board: 4

Operational Details

Schedule / Flight

Polson - Butte

Flight Type

Private

Flight Phase

Landing (descent or approach)

Crash Site

Mountains

Region / Country

North America • United States of America

Aircraft Details

Aircraft

Learjet 24

Registration

N123CB

MSN

24-232

Year of Manufacture

1970