Circular 203
Accident/Incident Reporting (ADREP): Annual Statistics - 1984
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CIRCULAR ACCIDENT/INCIDENT REPORTING ADREP ANNUAL STATISTICS - 1984 Approved by the Secretary General and published under his authority ENTERNATIONAL CIVIL AWlAT ION QIGANIZAT iON MONTREAL CANADA
Published in separate English, French and Spanish editions by the Tnternarional Civil Aviation Organimtion. All correspondence, except orders and subscriptions, should be addressed to the Secretary General. Otders 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. dolldrs or the currency of the country in which the order is placed. Document Sales Unit International Civil Aviation Organization 1000 Sherbrooke Street West, Suite 400 Montreal, Quebec Canada H3A 2R2 Argentina El Ateneo, Pedro Garcia S.A.L.E. e I., Dpto. Compras - Importacibn, Patagones 2463, 1282 Butnos Aires. Egypl. ICAO Representative, Middle East and Eastern African Office, 16 Hassan Sabri, Zamalek, Cairo. Frmce. Reprbentnnt de I'OACI, Bureau Europe, 3 bis, villa Grnile-Bergerat, 92522 Neuilly-sur-Seine Cedtx. India. Oxford Book and Stationery Co., Scindia House, New Delhi or 17 Park Street. Calcutta. Iopun. Japan Civil Aviation Promotion Foundation, 15-1 2, I-chome, Toranomon, Minato-Ku, Tokyo. Kenya. ICAO Representative, Eastern African Office, United Nations Accommodation, P.O. Box 46294 Nairobi, Mexico. Representante de la OACI, OFicina Norteamerica y Caribe, Apartado postal 5-377, C.P. 11590. Ntxico 5, D.F. Peru. Representante de la OACI, Oficina Sudarnerica, Apartado 4127, Lima 100. Senegal. Reprbentant de l'OACI, Bureau Afrique, Boite postale 2356, Dakar. Spain. Libreria de Aeronhutica y Astronhutici Sumaas, Desengafiu, 12-3O-3, Madrid 13. Thailand. lCAO Representative, Asia and Pacific Office, P.O. Box 614, Bangkok. United Kingdom. Civil Aviation Authority, Printing and Publications Services, Greville House, 37 Gratton Road, Cheltenham, Glos., GLSO 2BN, Do you receive the lCAO 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 publications, their contents, amendments, supplements, corrigenda and prices. Available In three separate editions English, French and Spanish. Annual subscription U.S.15.00 surface mail U.S.20.00 air mail.
TABLE OF CONTENTS Page Introduction............................... 1 TABLE I - Accidents and Incidents by Type of Operation and Aircraft Mass 1984 . . . . . . . . . . . . . . . . . . . 3 TABLE I1 - Accidents and Incidents to Aeroplanes by Type of Operation and Powerplant 1 984 . . . . . . . . . . . . . . 4 PART I ACCIDENTS TO AEROPLANES Airline Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 General Aviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 PART I1 ACCIDENTS TO HELICOPTERS Airlineoperations ........................... 15 General Aviation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 PART I11 INCIDENTS Airline Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 General Aviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
ICAO Circular 203-AN/ 124 INTRODUCTION General The information in this publication is based on 625 accident and 101 incident reports of the ICAO ADREP system for the year 1984 for aircraft of a maximum certificated take-off mass over 2 250 kg. The statistics were compiled in February 1987. Purpose The purpose of the ADREP statistics is to provide data that 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 726 occurrences. Of these, 637 were Data Reports and 89 were Preliminary Reports. Preliminat-y reports do not contain factors and are therefore excluded in the compilation of statistics on factors. Limitations When considering the information presented, the reader must be aware of the following 1 imi tat ions and conventions a The ADREP manual contains specific coding instructions nonetheless, there may be some unintentional bias on the part of the person coding the information particularly in the coding of factors. b Some accidents are reported to ICAO on computer tapes and processed through a conversion programme before they are entered in the ADREP data bank. Since some of the data reported are not compatible with the ADREP coding system, precision is not attainable in all cases. Notes on the Statistical Tables a For each accident/incident there may be up to two types of occurrences and up to 13 factors. Thus, the totals in these categories will frequently exceed the total number of reports. b Factors may be related to the first as well as to the second type of occurrence or to both. Accordingly, a factor may be counted twice for a given occurrence.
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