What happened
Upon landing within the designated touchdown zone, the flight crew attempted to decelerate the aircraft type using brakes and thrust reversers. The pilot reported that the primary braking system failed to engage despite multiple attempts to apply pressure. After the pilot and co-pilot both found the standard brakes ineffective, the pilot engaged the emergency brake handle.
In an effort to increase the available stopping distance, the pilot used the nose wheel tiller to steer toward a taxiway intersecting the runway at a 45-degree angle. During this maneuver, the aircraft slid off the taxiway and into the nearby grass. The impact caused the right main landing gear to collapse and resulted in substantial damage to the right wing spar. There were 0 fatalities and 0 injuries reported in the source material.
Findings
Post-accident investigations into the aircraft systems found no evidence of mechanical malfunctions regarding the wheel brakes or other critical systems prior to the impact. While the crew reported using thrust reversers, recorded data and video evidence indicated that the thrust reversers were actually not deployed during the landing sequence.
Simulations of the landing roll confirmed that the aircraft experienced reduced deceleration. Calculations suggested that without the use of ground airbrakes, the required stopping distance exceeded the runway length available from the point of touchdown. Although tire skid marks confirmed heavy braking was applied to both the runway and taxiway, the specific reason for the reported lack of braking effectiveness could not be determined. The absence of a flight data recorder prevented investigators from confirming the position of the airbrakes during the event.