Piper PA-28-161 and Schleicher ASW-15 mid-air collision near Yverdon, Sz, June 22, 2001
On June 22, 2001 at about 3:50 pm local time, 2 aircraft, Piper PA-28-161 (HBPKL) and Schleicher ASW-15 (HB1013), were involved in a mid-air collision near Yverdon. 4 people were killed and 1 person was seriously injured. The weather was visual conditions (good weather).
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 November 2, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 22, 2001 · about 3:50 pm local time · cases in 2001
- Place
- Yverdon, Eswatini
- Type
- Accident · mid-air collision
- Injuries
- 4 people were killed and 1 person was seriously injured.
- Weather
- visual conditions (good weather)
- Aircraft 1
- Piper PA-28-161 · all PA-28-161s on the register
- Registration
- HBPKL · registered outside the United States
- Damage
- Substantial damage
- Flight
- Flight of an unrecorded kind · non-U.S. private rules
- Aircraft 2
- Schleicher ASW-15 · all ASW-15s on the register
- Registration
- HB1013 · registered outside the United States
- Damage
- Substantial damage
- Flight
- Personal flight · non-U.S. private rules
The factual record for the Piper PA-28-161 from the NTSB's investigation tables, in plain English
The aircraft
- Landing gear: fixed
The flight
- Departed from: LSGL Lausanne
- Destination: LSGY Yverdon
- Flight plan: not recorded
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 2 | 1 |
The factual record for the Schleicher ASW-15 from the NTSB's investigation tables, in plain English
The aircraft
- Landing gear: fixed
The flight
- Departed from: LSGY Yverdon
- Flight plan: not recorded
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Connections how this case links to the rest of the register
- Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,620 registered today · the model family and its accident history
- Piper 44,840 aircraft on the register
- Schleicher ASW-15 26 registered today · the model family and its accident history
- Schleicher 506 aircraft on the register
The whole map of how records connect · these connections as data: /graph/accident/NYC01WA162.json.
The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.
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 does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.