Air taxi aircraft crash during ILS approach

No fatalities • Mosinee, United States of America • Landing (descent or approach)

An on-demand air taxi aircraft crashed into trees and terrain while attempting an instrument landing system approach during snow removal operations.

What happened

During a series of landing attempts at an airport, an on-demand air taxi aircraft struck trees and terrain. The accident occurred while the crew was performing their third attempt at an ILS approach. The impact took place roughly two miles past the airport, positioned on the extended centerline of the landing runway.

Prior to the crash, the pilot had executed a missed approach following an initial attempt where the runway and vehicles on the taxiway were visible. A second missed approach was subsequently performed due to reported fluctuations in the instrument course direction indicator. During this second attempt, the pilot requested that airport lighting be increased to high intensity to improve visibility, a request that was confirmed as completed.

Following the passing of the outer marker on the third approach, the pilot had no further recollection of the flight sequence. At the time of the accident, active snow removal operations were being conducted at the airfield.

Findings

  • The aircraft struck terrain and trees during the final approach phase.
  • Instrument fluctuations on the course direction indicator contributed to a second missed approach.
  • Snow removal activities were underway at the airport during the period of the accident.

Probable cause

The aircraft collided with terrain during a third approach attempt following instrument malfunctions and low visibility conditions.

Frequently asked questions

What happened in the 1990-01-16 Cessna 402 accident near Mosinee, United States of America?

An on-demand air taxi aircraft crashed into trees and terrain while attempting an instrument landing system approach during snow removal operations.

Were there any fatalities in the 1990-01-16 Cessna 402 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 1990-01-16 involved a Cessna 402, registration N4532Q, operated by Freight Runners Express, at Mosinee, United States of America.

What was the probable cause of the accident?

The aircraft collided with terrain during a third approach attempt following instrument malfunctions and low visibility conditions.

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