9/3/2023 0 Comments Youtube helios flight 522![]() ![]() A moment of hope emerged when a flight attendant, still conscious after using several crew oxygen containers, made his way into the cockpit and took the plane’s controls. The 737’s pilots were slumped over their controls and passengers were wearing oxygen masks. Unresponsive to radio communication, the jet flew into Greek airspace, where two F-16s intercepted it. Even after oxygen masks dropped to passengers, the plane continued its climb. Alarms sounded onboard but the pilots, beginning to feel the effects of hypoxia, misinterpreted them. Instead, pressure started dropping 13 minutes into the Cyprus-to-Prague flight. Investigations after the crash showed that the flight crew had several opportunities to notice and correct the setting, but they never did. The system was never switched back to auto. The problem with this 737 began when ground crew set the plane’s pressurization system to manual to check a reported leak. Human error was the root of this terrifying 2005 ghost flight that crashed outside of Athens and killed all 121 people onboard. The stories of five previous ghost planes shed light on what might have happened here. It wouldn’t be the first time such an event has brought down an aircraft. Before the landing could be executed, the theory goes, the crew was incapacitated, leaving a plane full of dead and dying people that flew itself west over the Indian Ocean until it ran out of fuel and dropped from the sky. Once the plane is found - thanks to satellite flight-path analysis, investigators have an idea of where to look - the investigation will turn to why the plane flew on autopilot until it couldn’t fly anymore.Ī lot of what we know supports the theory that MH370 was a ghost plane - specifically, that a fire or depressurization or some other catastrophic event forced the pilot to attempt an emergency landing, which would explain the mysterious westward turn made by the Boeing 777. There’s precious little certainty about what happened to Malaysia Airlines Flight 370 after it left the ground in Kuala Lumpur, but as the Washington Post reported this morning, there’s “a new consensus among investigators” that the plane flew a steady route across a little-traveled corridor of the Indian Ocean before running out of fuel and crashing. However, as the altitude increases more and more oxygen is required to be added.Helios 522 became a ghost plane and crashed near Athens. At lower levels, a mixture of air and oxygen is required to maintain the alveolar pressure. Above this altitude, oxygen needs to be artificially added to the body. The partial pressure of 55 mm Hg is considered the minimum pressure of oxygen required to sustain normal functions. ![]() Even at sea level, the alveolar oxygen pressure is only 14% (103 mm Hg).Īs the altitude increases, the partial pressure of oxygen in the alveoli decreases to the point where it cannot cater to bodily functions. This together with the requirement for the pressure difference to be the same between the lungs and the atmosphere, the alveoli cannot take in the entire 21% of the oxygen in the atmosphere. Because this is a continuous process, there is always water vapor and carbon dioxide present in the alveoli. The body takes in the oxygen, and in return, it passes water vapor and carbon dioxide into the alveoli. This air is then passed into tiny, microscopic structures called alveoli where the gas exchange occurs between the capillaries and the alveoli. As oxygen makes 21% of this pressure, the partial pressure of oxygen is 160 mm Hg and that of Nitrogen is 600 mm Hg. The total pressure exerted by these in the atmosphere is 760 mm Hg. ![]()
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