Casualties unknown

Aircraft Collides with Terrain After Dropping Emergency Drilling Equipment at High-Altitude Site (N8198B)

Rutheron, NM, US

On July 17, 1983, a Cessna 172 (registration N8198B) was involved in an aviation accident near Rutheron, NM. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

While making a second pass to check a drop of emergency drilling equipment, the aircraft inadvertently descended into trees and poles despite power application. Post-accident examination showed rich mixture evidence.

Incident Overview

An aircraft collided with the ground inadvertently after dropping emergency drilling equipment at a drilling site. The pilot was making another pass to check on the drop when the aircraft started to descend. Despite application of power, the aircraft descended into an area of trees and poles. The engine was still running after impact and was secured by the pilot. The site altitude was 7,500 ft.

Post-Accident Investigation

Post-accident investigation revealed black and gray soot on the spark plugs, which is indicative of a rich mixture. The pilot had approached at 70 knots indicated airspeed (KIAS) with 10 to 20 degrees of flaps. No other factors or causal statements were provided by the investigation source.

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Frequently asked questions

What happened in the 17 Jul 1983 Cessna 172 accident near Rutheron, NM?

While making a second pass to check a drop of emergency drilling equipment, the aircraft inadvertently descended into trees and poles despite power application. Post-accident examination showed rich mixture evidence.

What aircraft was involved and where did it happen?

The accident on 17 Jul 1983 involved a Cessna 172, registration N8198B, at Rutheron, NM.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X43752. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.