![]() "ineffectiveness of measures taken by the manufacturer in response to previous pressurisation incidents in the same type of aircraft." The crash resulted in the death of all 115 passengers and six crew. The Air Accident Investigation and Aviation Safety Board (AAIASB) of the Hellenic Ministry of Transport and Communications has listed three "direct" and four "latent" causes of the 14 August 2005 Helios Airways Boeing 737-300 accident. Four minutes before the 737 crashed, the CVR records three overspeed alerts and, finally, four altitude alerts. The radio, however, was still set to the Nicosia, Cyprus frequency, as it had been when the pilots lost consciousness. About 5min before the aircraft crashed into a hillside, the CVR records three progressively weakening attempts - believed to have been made by a steward who gained access to the flightdeck - to transmit mayday calls to Athens. The FDR printout indicates the warning horn had operated continuously from the time it was first triggered during the climb. ![]() The report reveals that, during the aircraft's final 30min, the cockpit voice recorder (CVR) tape playback was dominated by the continual sound of the cabin altitude warning horn, which stopped 44s before impact as the aircraft descended through 10,000ft altitude. Similarly, when the aircraft ran out of fuel and began its descent after being flown over almost its entire route toward Athens by the pre-programmed flight management system/autopilot, the FDR traces of cabin and aircraft altitude shown in the report also coincided. This is clear from the FDR download from the 14 August 2005 accident carried out by the French investigation agency BEA for the Hellenic Air Accident Investigation and Aviation Safety Board (AAIASB)'s just-published final report on the crash near Grammatikos, Greece. Airline Business special: CEOs to watch in 2021Īrguments and controversy surround crash report as airline and aviation authorities feel the sting of criticismįlight data recorder (FDR) information from the Helios Airways crash proves that crew and passengers gradually lost consciousness from lack of oxygen as cabin altitude increased almost in line with the 737-300's height, as the aircraft climbed from Larnaca, Cyprus.FlightGlobal Guide to Business Aviation Training and Safety 2021.EDGE: A new global force in aerospace and defence.Shell Aviation: What will it take to Decarbonise Aviation?.What does the future of aviation look like in 2022?.Guide to Business Aviation Training and Safety 2022.What will it take to Decarbonise Aviation?.Guide to Business Aviation Training and Safety 2023.Airline Business Covid-19 recovery tracker.
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