Raytheon 390 accident near Bever, Ch, December 19, 2010
On December 19, 2010 at about 2:02 pm local time, a Raytheon 390, registered DIAYL, was destroyed in an accident near Bever (Samedan airport). It was a flight of an unrecorded kind under non-U.S. private rules. 2 people were killed. The weather was instrument conditions (cloud, fog or low visibility).
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
- December 19, 2010 · about 2:02 pm local time
- Place
- Bever, Switzerland · Samedan · map
- Type
- Accident
- Injuries
- 2 people were killed.
- Weather
- instrument conditions (cloud, fog or low visibility)
- Aircraft
- Raytheon 390 NO SERIES
- Registration
- DIAYL · no longer on the register · serial RB-249
- Damage
- Destroyed
- Flight
- Flight of an unrecorded kind · non-U.S. private rules
The NTSB's narrative preliminary · quoted from the NTSB record
On December 19, 2010, 1402 coordinated universal time, a German registered Raytheon 390 Premier I, D-IAYL, was destroyed upon impact with terrain while maneuvering near Bever, Switzerland. The two pilots were fatally injured. The airplane departed Zagreb Airport (LDZA), Croatia, and was destined for Samedan Airport (LSZS), Switzerland. According to initial information provided by Switzerland's Aircraft Accident Investigation Bureau (AAIB), the airplane was performing a right turn at low altitude in order to land at LSZS. The investigation is under the jurisdiction of the Government of Switzerland. This report is for information purposes only and contains only information released by the Government of Switzerland. Further information pertaining to this accident may be obtained from: Aircraft Accident Investigation Bureau (AAIB) Aeropole 1 Rte de Morens CH-1530 Payerne Switzerland
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
The aircraft
- Maximum gross weight: 12,590 lb
- Seats: 8
- Landing gear: retractable
- Engine 1: Williams FJ44-2A (turbofan); 0 hours total
- Engine 2: Williams FJ44-2A (turbofan); 0 hours total
- Fire on the ground
- Operator: Windrose Air Jetcharter Gmbh
The flight
- Departed from: LDZA Zagreb
- Destination: LSZS Samedan
- Flight plan: not recorded
Weather at the time
- Wind: from 200° at 8 knots
- Visibility: 2 statute miles
- Sky: broken clouds at 4,000 ft; a few clouds at 2,500 ft
- Temperature: 21°F (-6°C), dew point 14°F (-10°C)
- Altimeter: 29.59 inHg
- Observation at 1:40 pm from LSZS, 1 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 2 |
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.