No fatalities

1983-11-26: Cessna 340 (N98567) — The Pacific Institute — Ephrata, United States of America

Ephrata, United States of AmericaLanding (descent or approach)

On November 26, 1983, a Cessna 340 (registration N98567) operated by The Pacific Institute was involved in an aviation accident near Ephrata, United States of America during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: Occurrence #1: in flight collision with terrain/water Phase of operation: missed approach (IFR) Findings 1. (c) procedures/directives - inaccurate - pilot in command 2. (c) ifr procedure - inaccurate - pilot in command 3. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 1781219942Data APIEditorial standards

An IFR aircraft struck a hilltop during a missed approach in IMC after the pilot set the VOR course indicator to 222° instead of 202°, directing the flight over the accident site. The pilot, sole occupant, was seriously injured.

Accident Overview

During a missed approach in instrument meteorological conditions, an aircraft on an IFR flight plan collided with a hilltop. The pilot, who was the sole occupant, sustained serious injuries.

Sequence of Events

The pilot reported establishing visual contact at about 2,000 feet msl, but ground features were masked by snow. When the airport was not sighted at the expected time, a missed approach was initiated. Shortly thereafter, the aircraft struck the ground.

Findings

Investigation revealed that the VOR course indicator (OBS) was set to 222° instead of the published inbound heading of 202°. The resulting course passed directly over the accident site. The aircraft's low altitude prevented radar observation.

Probable Cause

The official probable cause identified the in-flight collision with terrain during the missed approach, with findings that the pilot in command conducted inaccurate procedures/directives, performed an inaccurate IFR procedure, and failed to correct equipment settings.