No fatalities

Outlanding Under Unfavorable Wind Conditions Leads to Collision for Glider HB-700

Bennau, SZ, CH

On February 21, 1966, an ALEXANDER SCHLEICHER OHG SEGELFLUGZEUGBAU K 8B (registration HB-700) was involved in an aviation accident near Bennau, SZ, CH. No fatalities were reported. Investigators recorded the probable cause as: An outlanding performed under unfavorable wind conditions fell short and collided with an obstacle. This summary draws on records from the Swiss Transportation Safety Investigation Board (STSB / SUST).

Sourcesthe Swiss Transportation Safety Investigation Board (STSB / SUST)Primary reportUpdated 2026-10-18Data APIEditorial standards

On 21 February 1966, a K-8B glider (HB-700) attempted an outlanding near Bennau, Switzerland, under unfavorable wind conditions, fell short, and struck an obstacle. The pilot was uninjured; the aircraft suffered heavy damage.

Accident

On 21 February 1966, a glider, registration HB-700, was involved in an accident near Bennau in the canton of Schwyz, Switzerland. The aircraft was conducting an outlanding under unfavorable wind conditions. During the landing attempt, the glider fell short of the intended landing area and collided with an obstacle. The pilot sustained no injuries. The aircraft was heavily damaged, with the damage assessed at 25 percent of its value.

Aircraft and Pilot Information

The aircraft was a K-8B glider, bearing the Swiss registration HB-700. The pilot, who was the sole occupant, was uninjured in the accident. No further details about the pilot are provided in the source.

Investigation

The official investigation was conducted by the Swiss Federal Aircraft Accident Investigation Commission. The commission reviewed the circumstances and concluded that the outlanding, performed under unfavorable wind conditions, fell short and resulted in a collision with an obstacle. The investigation did not identify any additional contributing factors.

Probable Cause

The probable cause of the accident, as stated by the investigation, is that an outlanding performed under unfavorable wind conditions fell short and the aircraft collided with an obstacle.

Frequently asked questions

What happened in the 21 Feb 1966 ALEXANDER SCHLEICHER OHG SEGELFLUGZEUGBAU K 8B accident near Bennau, SZ, CH?

On 21 February 1966, a K-8B glider (HB-700) attempted an outlanding near Bennau, Switzerland, under unfavorable wind conditions, fell short, and struck an obstacle. The pilot was uninjured; the aircraft suffered heavy damage.

Were there any fatalities in the 21 Feb 1966 ALEXANDER SCHLEICHER OHG SEGELFLUGZEUGBAU K 8B accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 21 Feb 1966 involved an ALEXANDER SCHLEICHER OHG SEGELFLUGZEUGBAU K 8B, registration HB-700, at Bennau, SZ, CH.

What was the probable cause of the accident?

An outlanding performed under unfavorable wind conditions fell short and collided with an obstacle.

Investigation report by the Swiss Transportation Safety Investigation Board (STSB / SUST). Original record: https://www.sust.admin.ch/inhalte/AV-berichte/319.pdf. This page is a structured re-presentation; facts and quotes are in the Swiss Transportation Safety Investigation Board (STSB), Switzerland.