No fatalities

Engine Failure Leads to Emergency Landing and Crash in Oregon (N6275D)

Sinclair, United States of AmericaFlight

On May 15, 1976, a Rockwell Grand Commander 680 (registration N6275D) operated by Western Aerial Contractors was involved in an aviation accident near Sinclair, United States of America in flight. No fatalities were reported. Investigators recorded the probable cause as: Powerplant failure for undetermined reasons. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-12Data APIEditorial standards

A twin-engine aircraft suffered a right engine failure during VFR cruise on top, forcing an emergency descent through adverse weather. The pilot extended gear and flaps before crashing in a field, sustaining serious injuries.

Accident Overview

On a flight from Scottsbluff, Nebraska, to Eugene, Oregon, the pilot was cruising under visual flight rules (VFR) on top when the right engine failed. In response, the pilot reduced altitude to attempt an emergency landing, descending through adverse weather conditions. After the landing gear and flaps were extended, the airplane crashed in an open field. The pilot sustained serious injuries.

Probable Cause and Contributing Factors

The official investigation determined the probable cause to be powerplant failure for undetermined reasons. The following contributing factors were identified:

  • Improper in-flight decisions
  • Failure to follow approved procedures
  • Airframe ice
  • Icing conditions including sleet and freezing rain
  • Improper emergency procedures
  • Conditions conducive to carburetor icing
  • Forced landing off airport on land
  • Snow
  • Propeller not feathered

Sequence of Events

The flight was progressing under VFR on top when the right engine lost power. The pilot initiated a descent to find a suitable landing area, but weather conditions deteriorated during the descent. The aircraft encountered icing conditions, which likely affected performance. The pilot extended the landing gear and flaps in preparation for landing, but the airplane ultimately struck terrain in an open field.

Injury and Damage

The pilot was seriously injured. The aircraft sustained substantial damage in the crash.