Casualties unknown

Airplane Strikes Mountainside Following Engine Sputter, No Mechanical Fault Found (N9970M)

St. Michael, AK, US

On August 8, 1992, a Cessna 207A (registration N9970M) operated by Hageland Aviation Services was involved in an aviation accident near St. Michael, AK. Investigators recorded the probable cause as: THE PILOT ATTEMPTED VFR FLIGHT INTO IMC WEATHER CONDITIONS. CONTRIBUTING TO THE ACCIDENT WERE THE MOUNTAINOUS/HILLY TERRAIN, AND THE LOW CEILING WEATHER CONDITION. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

An airplane collided with a 1,000-foot mountain at the 500-foot level after the pilot reported an engine sputter during cruise flight. Post-accident inspection revealed no engine problems. Miles of open sea-level terrain were available nearby.

Accident Overview

An airplane struck the upslope side of a mountain at the 500-foot level and came to rest on the opposite side of the 1,000-foot high mountain. The impact occurred during an attempted landing on the mountainside.

Pilot Report

The pilot stated that while at cruise flight, the engine sputtered. In response, he executed a landing on the mountainside. No further details of the pilot's actions were provided.

Engine Examination

Following the accident, the engine was inspected and no problems were found. The reason for the reported sputter remains undetermined.

Weather Conditions

Marginal visual flight rules (VFR) and instrument flight rules (IFR) weather conditions were forecast for the area at the time of the accident. The actual weather encountered during the flight was not specified.

Terrain Observations

To the immediate left of the crash site, there were miles of open terrain at sea level. The significance of this terrain relative to the accident sequence is not stated.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X15282. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.