Aircraft Crashes During Second ILS Approach in Snow and Fog

Casualties unknown • Pocatello, ID, US

An aircraft crashed into snow-covered terrain while on a second instrument landing system approach to runway 2L, resulting in the destruction of the plane. No mechanical failure was found.

What happened

The pilot initiated an instrument landing system approach to runway 2L during arrival. Weather conditions at the time included ceilings ranging from 700 feet scattered to broken, with overcast layers between 1,300 and 1,500 feet. Visibility was reduced to between one and one-and-a-half miles due to light snow and fog.

Approximately three minutes after contacting inbound approach control, the pilot executed a missed approach. Air traffic control cleared the aircraft back to the outer marker and instructed the pilot to maintain 7,000 feet before switching to departure control frequency. After changing frequencies, the pilot received clearance for another ILS approach and acknowledged the instruction.

Shortly after this clearance, the aircraft crashed approximately one-and-a-half miles northwest of runway 21. There were no known witnesses to the impact. Tower personnel reported seeing the aircraft briefly during the missed approach phase, noting nothing unusual regarding its flight attitude or location at that time.

The investigation

Examination of the crash site revealed the aircraft had impacted snow-covered terrain while maintaining a northwesterly heading. The wreckage distribution indicated a near wings-level attitude during a steep descent. Investigators found no evidence of pre-impact mechanical malfunction or failure.

Probable cause

The pilot's failure to maintain visual reference with the runway environment during the second instrument landing system approach in adverse weather conditions, which resulted in controlled flight into terrain.

Frequently asked questions

What happened in the 1983-12-30 Piper PA-34-220T accident near Pocatello, ID?

An aircraft crashed into snow-covered terrain while on a second instrument landing system approach to runway 2L, resulting in the destruction of the plane. No mechanical failure was found.

What aircraft was involved and where did it happen?

The accident on 1983-12-30 involved a Piper PA-34-220T, registration N8362L, at Pocatello, ID.

What was the probable cause of the accident?

The pilot's failure to maintain visual reference with the runway environment during the second instrument landing system approach in adverse weather conditions, which resulted in controlled flight into terrain.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X45411. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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