No fatalities

Piper Super-Cub HB-OYB Accident at Beromünster on 16 June 1970

Luzern-Beromünster Flugplatz (LSZO), LU, CH

On June 16, 1970, a PIPER AIRCRAFT CORPORATION PA-18 "150" (registration HB-OYB) was involved in an aviation accident near Luzern-Beromünster Flugplatz (LSZO), LU, CH. No fatalities were reported. Investigators recorded the probable cause as: The pilot touched down near the left edge of the runway during the intended landing and, during the go-around, drifted further left into high grass and rolled into the water ditch. 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

During a training flight at Beromünster airfield, a Piper Super-Cub (HB-OYB) veered left during go-around, rolled through high grass into a water ditch. The pilot was uninjured; aircraft substantially damaged.

Overview

On 16 June 1970, a Piper Super-Cub aircraft, registered as HB-OYB, was involved in an accident at Beromünster airfield. The aircraft was conducting a training flight at the time.

Flight Details

The training flight proceeded normally until the pilot initiated a landing approach. The intended landing resulted in the aircraft touching down near the left edge of the runway.

Accident Sequence

Following the touchdown near the left runway edge, the pilot decided to execute a go-around. During the go-around, the aircraft veered left, departing the runway surface. It then rolled through high grass adjacent to the runway and subsequently entered a water ditch that ran parallel to the runway.

Damage and Injuries

The aircraft sustained substantial damage as a result of the roll through the grass and the impact with the water ditch. The pilot, who was the sole occupant, remained uninjured.

Probable Cause

The accident occurred because the pilot touched down near the left edge of the runway during the intended landing and, during the go-around, drifted further left into high grass and rolled into the water ditch.

Frequently asked questions

What happened in the 16 Jun 1970 PIPER AIRCRAFT CORPORATION PA-18 "150" accident near Luzern-Beromünster Flugplatz (LSZO), LU, CH?

During a training flight at Beromünster airfield, a Piper Super-Cub (HB-OYB) veered left during go-around, rolled through high grass into a water ditch. The pilot was uninjured; aircraft substantially damaged.

Were there any fatalities in the 16 Jun 1970 PIPER AIRCRAFT CORPORATION PA-18 "150" accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 16 Jun 1970 involved a PIPER AIRCRAFT CORPORATION PA-18 "150", registration HB-OYB, at Luzern-Beromünster Flugplatz (LSZO), LU, CH.

What was the probable cause of the accident?

The pilot touched down near the left edge of the runway during the intended landing and, during the go-around, drifted further left into high grass and rolled into the water ditch.

Investigation report by the Swiss Transportation Safety Investigation Board (STSB / SUST). Original record: https://www.sust.admin.ch/inhalte/AV-berichte/548.pdf. This page is a structured re-presentation; facts and quotes are in the Swiss Transportation Safety Investigation Board (STSB), Switzerland.