Dassault MYSTERE FALCON 900 N900CS

Summary

On 2 July 1998 at about 17:49 local time, a Dassault MYSTERE FALCON 900 registered N900CS, operated by TAG Aviation USA, was involved in an accident near Hamilton, Montana, United States. 9 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

2 July 1998 at 17:49

Classification

Accident

Location

Hamilton, Montana, United States

Nearest airport

Ravalli Co. (6S5)

Coordinates

46.1596, -114.1406

Aircraft

Dassault MYSTERE FALCON 900

Registration

N900CS

Category

Airplane

Engines

3

Operator

TAG Aviation USA

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

San Francisco → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA98LA118

Nobody was injured.

Partial failure of the anti-skid brake system due to contamination.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The pilot reported that, after a normal approach and touchdown, he applied the brakes and thrust reversers. He stated that as the aircraft slowed to 60 to 70 knots, it veered to the right and exited the side of the runway. The pilot regained directional control after the aircraft exited the runway. Before the aircraft came to a stop, the right wing collided with the VASI lights for the opposite runway. Skid marks leading to the exit point on the runway, indicated that the right-side tire marks displayed heavier braking action than on the left side. Post-accident testing performed on the anti-skid generators revealed that the left-side inboard and outboard generators failed the manufacturer's specifications. The right-side inboard and outboard generators passed all manufacturers specifications. The left-side generators were disassembled. The inspection did not reveal any anomalies. A slight difference in the brush wear between the brush fittings was noted between the two generators. A short circuit between two adjacent collectors was found in the outboard generator rotor fitting. The manufacturer's representative reported that the short circuit was not due to a failure within a cell of the rotor, but was likely due to contamination present between the two collectors.

Quoted verbatim from the NTSB record.