Serious Incident Involving Cessna T206H in Nuuk (N595CS)

Incident Overview and Flight History On 25 March 2024, a Textron Aviation Cessna T206H, registration N959CS, was involved in a serious incident at Nuuk (BGGH) in Greenland. The aircraft was operating a private Instrument Flight Rules (IFR) ferry flight from Goose Bay (CYYR) to Nuuk as part of a multi-leg transfer from the United States to the United Kingdom. The pilot had landed at Goose Bay the previous night, where significant snow and ice were present, with an average snow depth of approximately 20 centimetres. On the day of the incident, the pilot completed a pre-flight check and engine run-up without remarks. The aircraft departed Goose Bay and climbed to Flight Level 130, where it cruised for more than four hours in outside air temperatures of approximately -30°C. ## Approach and Runway Overrun As the aircraft approached Nuuk, the Aerodrome Flight Information Service (AFIS) operator provided landing information for Runway 04, reporting a wind of 100° magnetic at 18 knots, visibility greater than 10 kilometres, overcast at 4,000 feet, QNH 991, a temperature of 2°C, and a wet runway. At nine nautical miles from the aerodrome, the pilot acquired visual contact and established for a visual approach to Runway 04. Turbulence on short final prompted the pilot to abort the first landing attempt. During the second approach, the aircraft touched down approximately 300 metres beyond the runway threshold. The pilot applied the toe brakes, but they had no effect. The pilot reported, “I have lost the brakes,” which was acknowledged by the AFIS operator. The aircraft decelerated slowly and continued rolling down the runway. Shortly before the end of the runway, the left brake began to function intermittently. At low speed and slightly left of the centreline, the aircraft overran the runway and continued rolling approximately 20 metres before striking a 25-centimetre-high soft snow bank and coming to a stop. The pilot shut down the engine and exited the aircraft. The incident occurred in daylight under Visual Meteorological Conditions (VMC). ## Damage, Injuries, and Investigation The investigation reported no injuries to the crew, passengers, or others, and no damage to the aircraft. After the aircraft was towed to the apron, a functional test of the main wheel brakes produced no remarks. The pilot opined that snow and ice accumulated in the wheel spats (wheel fairings) while operating on the ground at Goose Bay froze en route, preventing braking during the ground roll at Nuuk. The Danish Accident Investigation Board (AIB) notified the Danish Civil Aviation and Railway Authority (DCARA), the US National Transportation Safety Board (NTSB), the European Aviation Safety Agency (EASA), and the Directorate-General for Mobility and Transport (DG MOVE) on 27 March 2024. Upon concluding the preliminary safety investigation, the AIB decided not to conduct further safety investigations and closed the matter in accordance with applicable regulations.