This document describes a survey conducted in the European Civil Aviation Conference (ECAC) Area on the issue of age, experience and automation in European Air Traffic Management (ATM). It provides the theoretical background of the survey, based on cognitive ageing and expertise research. The methods applied and the evaluation process are explained, and the results detailed. Four groups of results are depicted: context factors, cognitive ageing versus gains due to experience, job demand and strain, and ageing and technological change. On basis of the results key elements of ageing in ATM were identified. These are the cognitive skills of Air Traffic Controllers (ATCOs), which are most likely to change because of ageing or experience. The final section develops scenarios on how best to deal with the issue of ageing in ATM in the future.