Casualties unknown

2025-04-28: SONACA AIRCRAFT S.A. S201 (HB-KGI) — Maggia, TI, CH

Maggia, TI, CH

On April 28, 2025, a SONACA AIRCRAFT S.A. S201 (registration HB-KGI) was involved in an aviation accident near Maggia, TI, CH. 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

During a training flight, a Sonaca S201 experienced an engine failure, made an emergency landing in a field, overturned, and came to rest inverted near Maggia, Switzerland. Both occupants sustained minor injuries.

Accident

On 28 April 2025, at 12:27 local time, a Sonaca Aircraft S.A. S201, registration HB-KGI, was involved in an accident near Maggia in the canton of Ticino, Switzerland. The aircraft was conducting a local training flight under visual flight rules (VFR) from and to Locarno airfield (LSZL). During the flight, an engine failure occurred. The pilot executed an emergency landing in a field. After contacting the ground, the aircraft overturned and came to rest inverted.

Aircraft and Ownership

The single-engine aircraft, a Sonaca S201, was owned by UBS Switzerland AG, Zurich, and held by Alsa Aero Locarno SA, Gordola. The specific engine type and other technical details are not provided in the preliminary report.

Occupants and Injuries

On board were the pilot and one passenger. According to the report, both crew members (equipaggio) sustained minor injuries. No other persons were injured, and there were no third-party casualties.

Damage

The aircraft was heavily damaged. The ground sustained light damage.

Investigation

The Swiss Safety Investigation Service (SISI) has opened an investigation and published a preliminary report. As the investigation is ongoing, no probable cause has been determined at this stage.

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