Circular 163
Accident/Incident Reporting (ADREP): Annual Statistics - 1978
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CIRCULAR ACCI DENT11 NCI DENT REPORTING ADREP ANNUAL STATISTICS - 1978 Approved by the Secretary General and published under his authority I INTERNATIONAL CIVIL AVIATION ORGANIZATION MONTREAL CANADA
Published in separate English, French and Spanish editions by the International Civil Aviation Organization. All correspondence, e-wept orders and subscriptions, should be addressed to the Secretary General of ICAO, P.O. Box 400, Place de I'Aviation internationale, 1000 Sherbrooke Street West, Montreal, Quebec, Canada H3A 2R2. Orders for this publication should be sent to one of the following addresses, together with the appropriate remittance by bank draft or post office money order in U.S. dollars or the currency of the country in which the order is placed. International Civil Aviation Organization, Attention Distribution Officer, P.O. Box 400, Place de I'Aviation internationale, 1000 Sherbrooke Street West, Montreal, Quebec, Canada H3A 2R2 Argentina. EL ATENEO. Pedro Garcia S.A.L.E. e I. Dpto. Compras - Importacion. Patagones 2463. 1282 Buenos Aires. Egvpt Arab Republic oS. ICAO Representative, Middle East and Eastern African Office, 16 Hassan Sabri, Zamalek, Cairo. France. Representant de I'OACI, Bureau Europe, 3 bis, villa Emite-Bergerat, 92200 Neuilly-sur-Seine. India. Oxford Book and Stationery Co., Scindia House, New Delhi or 17 Park Street, Calcutta. Japan. Japan Civil Aviation Promotion Foundation, No. 38 Shiba Kotohira-Cho, Minato-Ku, Tokyo. Mexico. Representante de la OACI, Oficina Norteamerica y Caribe, Apartado postal 5-377, Mexico 5, D.F. Peru. Representante de la OACI, Oficina Sudamerica, Apartado 4127, Lima. Senegal. ReprQentant de I'OACI, Bureau Afrique, Boite postale 2356, Dakar. Spain. Libreria de Aeroniutica y Astroniutica Surnaas, Desengario, 12-3-3, Madrid 13. Sweden. C.E. Fritzes Kungl. Hovbokhandel, Fredsgatan 2, Box 16356, Stockholm 16. Thailand. ICAO Representative, Far East and Pacific Office, P.O. Box 614, Bangkok. United Kingdom. Civil Aviation Authority, printing and Publications Services, Greville House, 37 Gratton Road, Cheltenham, Glos., GL5O 2BN. Do you receive the ICAO BULLETIN The ICAO Bulletin contains a concise account of the activities of the Organization as well as articles of interest to the aeronautical world The Bulletin will also keep you up to date on the latest ICAO publica- tions. their contents, amendments, supplements, corrigenda, and prices. Available in three separate editions English, French and Spanish. Annual subscription US. 1 5.00 surface mail U.S. 20.00 air mail.
CONTENTS Introduction ................................... 1 TABLE I . Accidents and Incidents by Type of Operation and Aircraft Weight 1978 ...................... 3 TABLE I1 . Accidents and Incidents to Aeroplanes by Type of Operation and Powerplant 1978 ........................ 4 PART I ACCIDENTS TO AEROPLANES Scheduled Airline Operations ........................... 5 Non-scheduled Airline Operations ......................... 9 Other Airline Operations ............................. 15 GeneralAviation ................................. 19 PART I1 ACCIDENTS TO HELICOPTERS Airline Operations ................................. 25 General Aviation ................................. 27 PART I11 INCIDENTS Airlineoperations ................................ 31 ................................. GeneralAviation 35
INTRODUCTION General This is the second publication of statistics from the ICAO AccidentIIncident Reporting ADREP System. These statistics are based on 888 accidents and incidents which occurred in 1978 to aircraft of a maximum take-off weight of more than 2 250 kg 5 000 lb. Purpose The purpose of the ADREP statistics is to provide simple statistics which may be useful for general safety studies and accident prevention. For more specific needs the ADREP system provides information in response to specific ADREP requests. Data Base These statistics are based on 888 reported occurrences. Of these, 811 were Data Reports. Unfortunately 77 occurrences were reported only as Preliminary Reports, which do not include factors and cannot be used for statistics on factors. Limitations When considering the information presented, the reader must be aware of the following limitations a Only occurrences reported to ICAO on the ADREP system are included b The ADREP Manual contains specific coding instructions. Nonetheless there may be some unintentional bias on the part of persons coding since ultimately the coding must be done by humans one cannot assume that judgemental bias has been totally eliminated in the ADREP reporting forms, particularly with respect to the coding of factors c Factors statistics are based only on the 811 Accidentlncident Data Reports received from States d Some accidents are reported to ICAO on computer tapes and are processed through a conversion programme before they are entered in the ADREP data bank. Since the data so reported may not be fully compatible with the ADREP system recording precision is not attainable in all cases. For example, the ADREP system for type of occurrence subdivides "Gear Collapsed" into "Nose gear, Main gear, Complete gear and Other gear" with a specific code for each. However, the information received on a computer tape may indicate only "Gear collapsed".
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