Casualties unknown

Airprox between Pilatus PC-7 and Cessna 172S near Wasen im Emmental (HB-TEE)

Wasen i.E., BE, CH

On May 19, 2020, a CESSNA AIRCRAFT COMPANY 172S (registration HB-TEE) was involved in an aviation accident near Wasen i.E., BE, 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 2026-10-18Data APIEditorial standards

On 19 May 2020, a Pilatus PC-7 (HB-HMU) and a Cessna 172S (HB-TEE) experienced a dangerous approach at about 5800 ft MSL near Wasen im Emmental, Switzerland. No injuries or damage reported. Investigation opened.

Incident Overview

On 19 May 2020, at 10:45 local time, a serious incident (airprox) occurred near Wasen im Emmental (BE), Switzerland. The Swiss Safety Investigation Board (SUST) opened an investigation. This preliminary report provides a brief and provisional description of the event without conclusions.

Aircraft Involved

Aircraft 1

  • Registration: HB-HMU
  • Type: Pilatus Aircraft LTD., PC-7
  • Operator: Private owner
  • Flight crew: 1
  • Flight rules: Visual Flight Rules (VFR)
  • Nature of flight: Private
  • Departure and destination: Triengen airfield (LSPN)

Aircraft 2

  • Registration: HB-TEE
  • Type: Cessna Aircraft Company, 172S
  • Operator: Alpaviation AG, Belp
  • Owner: Aare Eco Fly AG, Bern
  • Flight crew: 2
  • Flight rules: Visual Flight Rules (VFR)
  • Nature of flight: Training
  • Departure and destination: Bern Airport (LSZB)

Event Description

The two aircraft experienced a dangerous approach at an altitude of approximately 5800 ft above mean sea level. No further details are provided in the preliminary report. No injuries or damage to the aircraft are mentioned.

Frequently asked questions

What happened in the 19 May 2020 CESSNA AIRCRAFT COMPANY 172S accident near Wasen i.E., BE, CH?

On 19 May 2020, a Pilatus PC-7 (HB-HMU) and a Cessna 172S (HB-TEE) experienced a dangerous approach at about 5800 ft MSL near Wasen im Emmental, Switzerland. No injuries or damage reported. Investigation opened.

What aircraft was involved and where did it happen?

The accident on 19 May 2020 involved a CESSNA AIRCRAFT COMPANY 172S, registration HB-TEE, at Wasen i.E., BE, CH.