Casualties unknown

1965-09-07: AG FÜR DORNIER-FLUGZEUGE BÜ 131 APM (HB-URD) — Luzern-Beromünster Flugplatz (LSZO), LU, CH

Luzern-Beromünster Flugplatz (LSZO), LU, CH

On September 7, 1965, an AG FÜR DORNIER-FLUGZEUGE BÜ 131 APM (registration HB-URD) was involved in an aviation accident near Luzern-Beromünster Flugplatz (LSZO), LU, CH. Investigators recorded the probable cause as: Unintentional braking during rollout after an off-airport landing, causing the wheels to lock and the aircraft to nose over. This summary draws on records from the Swiss Transportation Safety Investigation Board (STSB / SUST).

Sourcesthe Swiss Transportation Safety Investigation Board (STSB / SUST)Primary reportUpdated 1785034239Data APIEditorial standards

On 7 September 1965, a Bücker 131 Jungmann (HB-URD) nosed over during rollout after an off-airport landing at Beromünster airfield when unintentional braking locked the wheels, causing some damage.

Event Details

On 7 September 1965, a Bücker 131 "Jungmann" aircraft, registration HB-URD, executed an off-airport landing at the Beromünster airfield in the canton of Lucerne, Switzerland. During the rollout phase, the wheels were locked due to unintentional application of the brakes. This caused the aircraft to pitch forward onto its nose and sustain some damage.

Aircraft Information

The aircraft involved was a Bücker 131 "Jungmann", a two-seat biplane commonly used for training and sport flying. The registration HB-URD was assigned by Swiss authorities.

Investigation Outcome

The Swiss Federal Air Accident Investigation Commission approved the accident report on 22 September 1965, after a summary procedure. The report concluded that the accident occurred when the wheels locked from unintentional braking during the rollout, leading to the nose-over and damage.

Probable cause

Unintentional braking during rollout after an off-airport landing, causing the wheels to lock and the aircraft to nose over.

Investigation report by the Swiss Transportation Safety Investigation Board (STSB / SUST). Original record: https://www.sust.admin.ch/inhalte/AV-berichte/275.pdf. This page is a structured re-presentation; facts and quotes are in the Swiss Transportation Safety Investigation Board (STSB), Switzerland.