Abstract
In the field of air crash, the analysis of CVR (Cockpit Voice Recorder) is sometimes theonlyway toexplain the circumstancesof the crash, either to improve safety for future flights or to determine the judicial responsibilities. Our forensic laboratory (IRCGN) is involved in the judicial process. IRCGNworks on the analysis of the flight recorders of any type of aircraft: civilianormilitary, private as soonas adecisionof justice is committed. The first recorder analysed came from the HABSHEIM crash (east of France) fromanAir FranceAirbus in1989duringanair show. Thenadozenof cases have been investigated like the CONCORDE crash in July 2000. Standards set by the Convention on International Civil Aviation Organisation and the well-known ‘Annex 13’ are used for technical investigations. French ‘Bureau Enquete Analyse’, a specialised independent civilian aviation attached to the ministry of transport is in charge of the inquiries and analysis in aircraft accident matter to prevent new occurrences whereas our laboratory takes part in the judicial expertise to emphasise the penal responsibilities. After data extraction from the CVR, the laboratory picks out as much information as necessary to determine the event course:
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