Abstract. The concept of RCR (RW Condition Report – reports on the condition of the runway) is that the aerodrome operator assesses the condition of the runway surface in cases where there is water, snow, slush, ice or frost on the operated runway. Based on the results of such an assessment, the runway condition code (RWYCC – RW Condition Code) and information describing the runway surface are reported, which can be used by the flight crew to calculate the flight characteristics of the aircraft. Such a format based on the type, depth and zone of contamination is the best assessment by the aerodrome operator of the condition of the runway surface, however, all other relevant information will be taken into account, which will be constantly updated, and changes in conditions will be immediately reported. The RWYCC specifies the characteristics of the braking performance on the runway as a function depending on the condition of the surface. With this information, the flight crew, having information about the flight characteristics of the aircraft provided by the manufacturer, can determine the required braking distance of the aircraft when landing in prevailing conditions.

Keywords: runway, runway condition, assessment format.