4.1 that the Draft ECAC Protocol extending common recognition of air-worthiness certificates so far as the export and import of aircraft spare parts and engines are concerned should be implemented as soon as possible ;
4.2 that, having regard to the certainty that airport facilities in Europe will need to be substantially developed in coming years, ECAC should carefully examine the possibilities of making a study of airport accounting and costing systems with a view to obtaining on a comparable basis within a European framework information on investments in, and operating costs of, airports, and on how those costs are divided between the air traveller and the public authorities concerned ;
4.3 that further consideration should be given in ECAC to the possibility of devising machinery which would facilitate regular contacts at the highest level between Members of ECAC and Members of the European Airlines Research Bureau for an exchange of views on problems of common interest ;
4.4 that, having regard to the fact that a recent agreement between International Air Transport Association (IATA) carriers in response to a US Civil Aeronautics Board (CAB) initiative has effectively modified in an upward sense the limits of compensation in respect of death or injury to an air passenger laid down in the Warsaw Convention of 1929 on Air Navigation and in the Hague Protocol of 1955 to that Convention in so far as flights to and from the USA are concerned, ECAC should examine what further action in this field if any is called for in respect of intra-European flights.
