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Accidents · NTSB GAA21WA114 · Preliminary: the investigation is not finished

Legacy 2000 accident near Oberramsern, Ch, May 8, 2021

On May 8, 2021 at about 12:20 pm local time, a Legacy 2000, registered HBYMS, was substantially damaged in an accident during approach near Oberramsern. It was flown under non-U.S. private rules. 2 people were killed.

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
May 8, 2021 · about 12:20 pm local time
Place
Oberramsern, Switzerland
Type
Accident
Injuries
2 people were killed.
Weather
not recorded
Aircraft
Legacy 2000
Registration
HBYMS · no longer on the register
Damage
Substantial damage
Flight
Flight · non-U.S. private rules

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Unknown or undetermined during approach defining event

The aircraft

  • Landing gear: fixed
  • Not recorded

The flight

  • Departed from: LSZG Grenchen Airport
  • Destination: LSZG Grenchen Airport

Weather at the time

  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The NTSB has not released the docket for this case yet. The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), is usually released when the investigation is nearly complete, and the list here is refreshed when it appears. Check at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.