What happened
During a visual approach to runway 20L at Atlanta-DeKalb Peachtree Airport (PDK), a Beech 400A was operating under the supervision of the pilot-in-command, who was monitoring while the second-in-command acted as the pilot flying. Prior to departure, the crew had calculated a landing distance of 3,440 feet based on an estimated weight, and no mechanical issues were noted regarding the brakes, flaps, or anti-skid systems. During the flight, air traffic controllers issued multiple warnings regarding a Cessna aircraft positioned ahead of the Beech 400A on a straight-in approach to runway 20R. Although controllers instructed the crew to maintain an altitude of 2,300 feet mean sea level to ensure separation, radar data showed the aircraft briefly descended to 2,200 feet before returning to the assigned altitude.
Shortly after the controller's instruction, the onboard TCAS issued a traffic alert. During the final stages of the approach, the crew began landing gear extension and flap adjustments. The flight crew notified the local controller that they were turning onto final approach, though no specific approach briefing regarding runway length or speeds was recorded. Upon landing on runway 20L, the aircraft failed to stop within the runway limits. The Beech 400A overran the runway, breached a perimeter fence, and came to a stop near a roadway where the airframe split into two pieces. The accident resulted in four injuries, with both pilots sustaining serious injuries.
Findings
Investigation details indicate that the crew was managing several tasks, including responding to ATC instructions and TCAS alerts, during the descent. While the aircraft's descent to 2,200 feet occurred, it was noted as a likely response to ATC separation instructions rather than the TCAS warning. The aircraft's failure to stop on the runway led to the structural breakup of the airframe.