CIRCULAR AERODROME FLIGHT INFORMATION SERVICE AFIS Approved by the Secrelary General and published under his authority INTERNATIONAL ClVl L AVlAfXON QRGANlZAtf ON MONTREAL m CANADA
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FOREWORD Introduction 1. On 1 June 1982 the ALr Navigation Commission 100-10 examined the results of a study by the Secretariat concerning the need for the introduction in ICAO documents of international pecif icat ions for aerodrome flight information service CAPIS as an entity of the air traffic services. 2. Follorfng an exchange of views, the Commission decided that internat ionaZ provis ions and /or guidance material regarding AFIS should be formulated. It instructed the Secretary to develop detailed proposals on the subject for further review by the Commission, taking into account the comments made daring the discussion. 3. The guidance material contained fn this circular was finally developed by the Air Navigation Commission on the basis of proposals presented by the Secretariat. Supporting reasons 4. The Statement of Basic Operational Requirements and Planning Crfterfa for Regional Air Navigation Haetlngs, as approved by the Air Navlgatlon Commission, specfftes that at aerodromes used by international general aviation where the type and density of trafffc clearly do not justlfy the provision of aerodrome control service, the provishon of aerodrome flight Information service by a unit located at the aerodrome should be recommended. The aerodromes in questfon are those designated by the letters "RG" in ICAO air navigation plan pub1 icat ions. 5. The main comments made during the iaftial consideration by the Air Navigation Commission, as indicated in paragraph 1 above, may be summarfzed as follows a Aerodrome flight information service was being provided on a growing scale, There was a definite need for a service between aerodrome control service and no service at all. Available informat ion showed that there were different understandings among States as to what aerodrome flight informatfon service . was. The kind of questions which should be addressed were 1 What is aerodrome flight information service 2 What are its limitations 3 What is the difference between aerodrome control service and RFIS 4 At what aerodromes may AFIS be accepted in terms of amount of traf flc , types of operation and meteorological conditions 5 What information should be provided 6 What should be the qusllflcatlons of AFIS officers
7 What sort of facitittes are required to provide AFIS b The widespread provision of AFfS demonstrated a need for guidance material on the subject but Roe necessarkly for stahdardlgation of the service. c If an international. general aviation aerodrome mfght be used also as an alternate for international scheduled air transport, aerodrome control service should be provided at the aerodrome. 6. The guidance material on .AFfS has been developed with the intent of answering the questions in 5 63 and reflecting the thoughts in 5 5. and c above. It includes guidance cadcerning the des igoatf on of AFIS aerodromes, the hasic elements of information to be provided, the requirements of AFIS units for information and communications, equipment and f ac iL Lt tes, the training of personnel and the procedures to be used. 7. The guidance material is intended to facilitate the task of future regional air navtgation RAN met lngs or regfonal planning groups in recommending the atr traffic services to be provided at interfiat f onal aerodromes designated far use by general, aviation. It Es also intended to facilitate the task of States in determining the fiature and scope of the service to be provided at individual aerodrome and the information to be published in their aeronautical information publications AIPS. It may also help to clarify in the minds of pilots the nature of the service to be expected at AFIS aerodromes. 8, It has been suggested that one. of the primary motivations behind AFIS is costlbenefit and that this is not always compatible with safety, ft is recalled in this context that regional air navigation plans shall satisfy the operational requirements and shall be economically justif fed ssernbly Resolutions A16-10 and A26-8, Appendix L, Associated Practice 5 refer. Although costs and the availability of qualffied controllers are significant factors, it is expected that States, when determining whether aerodrome control service or aerodrome flight information service is requfred at a given aerodrome, will give the same weight to safety considerations as when they are plannfng other facflities and services. 9. It has also been suggested that the introduction of aerodrome flieht information service is primarily an implementatLon problem. Zt may be noted in this regard that the Second Asia and Pacific Regidnal Air Navigation Meeting singapore, 1983 made provislon for AFIS at various aerodromes in the regions DOC 9404, Agenda Item 4, Appendfx A refers and that the European Air Navigation Plan also specifies a requirement far t5e provfsion of AFIS at a large number of aerodromes Doc 7754, 23rd edition, Part 111, Table AOP refers. The di F navigation plans Ear the Africa-Tndfan Ocean, Caribbean, Middle East and South American Regions contain general recanmendat ions on the subject.