Incident Details
The flight crew was cleared by air traffic control for a visual approach to a runway measuring 12,000 feet in length and 150 feet in width. On final approach at an altitude of 700-800 feet above ground level, an aural wind shear alert warning sounded, with no secondary system indications. The remainder of the approach was uneventful, and the approach was stabilized by 500 feet agl in visual meteorological conditions.
The aircraft touched down on the runway centerline at the 10,000-foot runway marker. Shortly after the nose wheel touched down, the aircraft began to drift to the right. The crew attempted to correct the right drift by applying full left rudder, left aileron, and differential braking; however, the inputs were described as "no help." Prior to the aircraft departing the runway surface, the crew applied both brakes to minimize speed during the excursion.
The flight crew then maneuvered the aircraft back onto the runway, and subsequently, the aircraft came to rest on the left side of the runway.
Aftermath and Examination
Examination of the aircraft by the manufacturer and the operator revealed no anomalies that were contributory to the accident. Per the manufacturer's recommendation, the nose landing gear assembly was removed and replaced. Three functional check flights were then accomplished with no anomalies noted.
Conclusion
The reason for the occurrence was not determined.