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Last updated: 15 June 2019
Status:Final
Date:Friday 13 August 2010
Time:20:36
Type:Silhouette image of generic FA50 model; specific model in this crash may look slightly different
Dassault Falcon 50
Operator:Natixis Lease
Registration: F-HAIR
C/n / msn: 37
First flight: 1981
Total airframe hrs:13194
Cycles:12365
Crew:Fatalities: 0 / Occupants: 4
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 0 / Occupants: 4
Aircraft damage: Substantial
Aircraft fate: Written off (damaged beyond repair)
Location:Paris-Le Bourget Airport (LBG) (   France)
Phase: Landing (LDG)
Nature:Test
Departure airport:Lyon-Bron Airport (LYN/LFLY), France
Destination airport:Paris-Le Bourget Airport (LBG/LFPB), France
Narrative:
Dassault Falcon 50, F-HAIR, operated on a check flight from Lyon-Bron to Paris-Le Bourget, France. The first officer was Pilot Flying on the preceding flight to Lyon. He experienced handling problems after selecting emergency braking. During the taxi phase the crew checked the operation of the braking system in normal and emergency modes, but did not find any faults.
The first officer remained Pilot Flying for the flight to Paris.
While on approach to Le Bourget, the first officer noted that the left main gear anti-skid was inoperative. The captain decided to use emergency braking because of the ineffective anti-skid system.
After touchdown the aircraft deviated to the right and the first officer responded by using left rudder. When moving to the left, the pilot attempted to correct using right rudder but the airplane ran off the left side of the runway. The aircraft returned to the runway but the nosegear collapsed.

Probable Cause:

Causes:
The accident resulted from the undetected reversal of two hydraulic lines of the emergency braking system following maintenance actions.
The following factors contributed to the accident:
- The lack of a means to differentiate the two pipes;
- Incomplete documentation on technical procedures in the application of Technical Instruction for the preparation and finalization of work for a return to service ;
- The doubt expressed by the co-pilot on the handling of the aircraft on the ground that was not taken into account by the captain.

Accident investigation:
cover
Investigating agency: BEA
Status: Investigation completed
Duration: 2 years and 3 months
Accident number: f-ir100813
Download report: Final report

Classification:

Runway excursion

Photos

photo of Dassault-Falcon-50-F-HAIR
accident date: 13-08-2010
type: Dassault Falcon 50
registration: F-HAIR
 

Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Lyon-Bron Airport to Paris-Le Bourget Airport as the crow flies is 404 km (252 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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