Amateur-built GLASAIR RG accident near Muhen, Ch, September 20, 2015
On September 20, 2015 at about 10:00 am local time, a 1989 amateur-built GLASAIR RG, registered HBYEA, was destroyed in an accident during enroute (cruise) near Muhen. 1 person was 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
- September 20, 2015 · about 10:00 am local time
- Place
- Muhen, Switzerland · map
- Type
- Accident
- Injuries
- 1 person was killed.
- Weather
- not recorded
- Aircraft
- Amateur-built GLASAIR RG RG, built 1989
- Registration
- HBYEA · no longer on the register · serial 750
- Damage
- Destroyed
- Flight
- Flight
The NTSB's narrative preliminary · quoted from the NTSB record
On September 20, 2015, about 1000 hours universal coordinated time, a Glassair RG airplane, Swiss registration HB-YEA was destroyed when it impacted an automobile and burst into flames during a forced landing following a loss of engine power near Muhen, Switzerland. The pilot was fatally injured. The incident investigation is under the jurisdiction and control of the Swiss Transportation Safety Investigation Board (STSB). This report is for informational purposes and contains only information released by or obtained from the government Switzerland. Further information pertaining to this accident may be obtained from: Swiss Transportation Safety Investigation Board Bundeshaus Nord, Kochergasse 10 CH-3003 Berne Switzerland Tel: +41 58 466 33 00 Website: http://www.sust.admin.ch Email: info-av@sust.admin.ch
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Loss of engine power (total) during enroute (cruise) defining event
Pilot
- Injury: fatal
The aircraft
- Maximum gross weight: 1,900 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming IO-360-B1E (piston); 0 hours total
- Fire on the ground
The flight
- Departed from: LSPN Lucerne
- Flight plan: not recorded
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight 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.
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.