The flight DR8177 departed Dakar, Senegal at 17:35 UTC on a passenger service to Paris-Charles de Gaulle Airport, France. En route the crew received information that it there was light snowfall at CDG. During the approach briefing the crew planned an ILS approach to runway 26L at 146 kt (Vref + 8 kt), full flaps, and autobrakes at medium. At 23:22 UTC (00:23 local time) the captain announced that the runway was in sight, as the aircraft was passes through a height of 240 feet. He then disconnected the autopilot. The aircraft was above the glideslope as the descent towards the runway was continued. After flying over the runway threshold at 85 ft, the captain began flaring at 40 ft. The aircraft touched down approximately 1050 m from the 26L threshold. Ground speed was 139 kt. With reversers selected at idle the crew noted that deceleration was not as expected. The captain then selected maximum reverse and began applying manual braking. At the end of the runway the captain steered the plane onto taxiway V1. At a ground speed of 41 knots the aircraft ran off the taxiway, coming to rest after 20 m. The left main gear and nose gear were damaged and deemed irreparable. The right main gear and 2 engine were also damaged. Causes of the accident: The accident was due to the continuation of landing when it touched down long and it was found that external conditions were more degraded than those previously reported to the crew. The following have contributed to the occurrence of this accident: – contamination of runway 08R/26L and degradation of the surface state (Rubber coating and deterioration of the surface) between 900 m and 300 m from THR 08R; – the erroneous determination of the runway 08R/26L conditions due to inadequate organization ground operations, monitoring the status of the platform in case of snow and maintenance of runways; – misinformation about the condition of the track, transmitted to the crew does not permit him to adopt the necessary measures; – non-use of thrust reversers.