Dassault-Breguet 10 accident near West Chicago, Illinois, September 23, 1985
On September 23, 1985 at about 3:25 pm local time, a Dassault-Breguet 10, registered N700DK, was substantially damaged in an accident near West Chicago, Illinois (Dupage airport). It was an executive or corporate flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was instrument conditions (cloud, fog or low visibility).
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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 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 23, 1985 · about 3:25 pm local time
- Place
- West Chicago, Illinois · Dupage · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- instrument conditions (cloud, fog or low visibility)
- Aircraft
- Dassault-Breguet 10
- Registration
- N700DK · registry record · serial 191
- Damage
- Substantial damage
- Flight
- Executive or corporate flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE FALCON 10 TOUCHED DOWN LONG AND FST ON A WET RUNWAY, EXPERIENCED HYDROPLANNING AND WENT OFF THE END OF THE RUNWAY,STRUCK A DRAINAGE DITCH AND COLLAPSED THE LANDING GEAR. THE NOSE GEAR CAME BACK AND BENT THE THROTTLE QUADRANT BRACKET, PULLED THE FUEL CONTROLS TO 90 PERCENT POWER. THIS PUSHED THE AIRCRAFT ON ITS BELLY ANOTHER 1000'-1600' UNTIL IT CAME TO A STOP ON A HILLSIDE.
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
Pilot
- Certificate: private
- Ratings: multi-engine land; single-engine land; instrument: airplane
- Flight time: 2,697 hours in all; 375 in this make and model; 28 in the last 90 days; 2,200 as pilot in command
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 537 hours
- Last inspection: annual inspection, June 13, 1985; 46 hours since
- Maximum gross weight: 18,740 lb
- Seats: 9
- Landing gear: retractable
- Engine: Garrett TFE-731-2-1C (turbofan); 0 hours total
The flight
- Departed from: EKM Elkhart IN at 2:50 pm
- Destination: DPA West Chicago IL
- Flight plan: IFR
- Runway 10, 4,001 ft by 75 ft
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 200° at 15 knots
- Visibility: 2 statute miles
- Sky: broken clouds at 2,000 ft; not recorded
- Temperature: 72°F (22°C), dew point 63°F (17°C)
- Altimeter: 29.00 inHg
- Observation at 3:50 pm from DPA
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| 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.
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number CHI85FA385.