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Serious Incident at Grenchen Airport: Near Collision Between Citation and Piper PA-28 (HB-PPG)

Grenchen Flugplatz (LSZG), SO, CH

On August 1, 2019, a THE NEW PIPER AIRCRAFT, INC. PA-28-161 (registration HB-PPG) was involved in an aviation accident near Grenchen Flugplatz (LSZG), SO, 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 1 August 2019, a Cessna Citation and a Piper PA-28 Warrior experienced a dangerous approach while on final to runway 06 at Grenchen Airport (LSZG). No injuries or damage reported.

Incident Overview

On 1 August 2019 at 15:27 UTC, a serious incident occurred at Grenchen Airport (LSZG) involving two aircraft. The aircraft were on final approach to runway 06 when a hazardous proximity event took place.

Aircraft Involved

Aircraft 1:

  • Registration: CX-CCT
  • Model: Cessna 500 Citation
  • Operator: Santom Aviatik AG, Faden 2, 6374 Buochs
  • Owner: Mielur S.A., Uruguay
  • Flight rules: Instrument Flight Rules (IFR)
  • Type of operation: Private
  • Departure: Billund Airport (EKBI), Denmark
  • Destination: Grenchen Airport (LSZG)
  • Pilot: Swiss citizen, born 1943
  • Passengers: 5

Aircraft 2:

  • Registration: HB-PPG
  • Model: Piper PA-28-161 Warrior III
  • Operator/Owner: Segel- und Motorfluggruppe Grenchen, Flughafenstrasse 117, 2540 Grenchen
  • Flight rules: Visual Flight Rules (VFR)
  • Type of operation: Training
  • Departure and Destination: Grenchen Airport (LSZG)
  • Flight instructor: Swiss citizen, born 1967
  • Student pilot: Swiss citizen, born 1995
  • Passenger: 1

Occurrence

The incident, described as a dangerous approach, occurred on final approach to runway 06 of Grenchen Airport. The business jet (CX-CCT) and the single-engine light aircraft (HB-PPG) came into dangerously close proximity. No further details about the separation or evasive actions were provided in the preliminary report.

Investigation

The Swiss Safety Investigation Board (SUST) opened an investigation into the serious incident. The preliminary report serves as a brief and provisional overview without conclusions. No probable cause has been stated at this stage.

Frequently asked questions

What happened in the 1 Aug 2019 THE NEW PIPER AIRCRAFT, INC. PA-28-161 accident near Grenchen Flugplatz (LSZG), SO, CH?

On 1 August 2019, a Cessna Citation and a Piper PA-28 Warrior experienced a dangerous approach while on final to runway 06 at Grenchen Airport (LSZG). No injuries or damage reported.

What aircraft was involved and where did it happen?

The accident on 1 Aug 2019 involved a THE NEW PIPER AIRCRAFT, INC. PA-28-161, registration HB-PPG, at Grenchen Flugplatz (LSZG), SO, CH.

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