# NTSB CHI85FA385: Dassault-Breguet 10, N700DK, West Chicago, IL, September 23, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: September 23, 1985, 10:25 local (15:25 UTC)
- Place: West Chicago, IL
- Coordinates: 41.879402, -88.220787 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.8794&lon=-88.2208&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12870
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI85FA385
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12870/pdf
- Page: https://openairdocs.org/ntsb/CHI85FA385

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- On ground/water encounter with terrain/water, landing - roll
  - in-flight planning/decision - improper, pilot in command (cause)
  - planned approach - improper, pilot in command (cause)
  - proper touchdown point - exceeded, pilot in command (cause)
  - airspeed - excessive, pilot in command (cause)
- Complete gear collapsed, landing - roll
  - landing gear,main gear - overload
  - landing gear,nose gear - overload

## Analysis

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.

## Aircraft

- Registration: [N700DK](https://openairdocs.org/deregistered/N700DK-1989-02-13), registration cancelled 1989-02-13, S/N 191 (OpenAirDocs)
- Reported make and model: Dassault-Breguet 10
- Registry model: [Dassault-Breguet FALCON 10](https://openairdocs.org/model/dassault-breguet-falcon-10) (registry code 2730101) (OpenAirDocs)
- Category: Airplane
- Serial number: 191
- Airframe hours: 537
- Engines: GARRETT TFE-731-2-1C 3230 lbs thrust turbo fan
- Damage: Substantial damage
- Flight: Executive/Corporate, Part 91
- Registered owner: Durair,Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 13, 1985, 46 hours before
- Departed: EKM, ELKHART, IN
- Destination: DPA, WEST CHICAGO, IL
- Flight plan: IFR
- Airport: DPA, Dupage, runway 10, 4,001 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; private; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 2,697 total, 375 in this make and model, 2,200 as pilot in command, 28 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day
- Wind: 200° at 15 knots
- Visibility: 2 statute miles
- Lowest ceiling: 2,000 ft broken
- Temperature: 72 °F, dew point 63 °F
- Altimeter: 29.00 inHg
- Observed at: DPA

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19850923046969A](https://openairdocs.org/incident/19850923046969A), Sep 23, 1985: Amd FALCON10, West Chicago, IL, Substantial damage. Landed long and fast on wet runway . Left runway when emergency brakes were applied. Thrust reversers not used.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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