Three Disasters That Led To Major Changes | United Airlines 585 | Mayday: Air Disaster

Boeing 737, was the standard in commercial aviation, but in 1991 a disaster occurred that caused major changes in the industry. When United Airlines 585 goes out of control and kills everyone on board, the investigation reaches a dead end until another crash occurs under similar circumstances. What was the cause of the 2 crashes? From Season 4 Episode 5 "Hidden Danger": Around the globe, more than six billion people have travelled on a Boeing 737. They’re the backbone of the aviation industry. But in 1991, something happened onboard a 737 that sent shudders through the world of aviation. Almost two years after the crash, the NTSB had studied the crew, the weather, the rudder, and thousands of other pieces of evidence – but they can’t solve the mystery. For only the fourth time in its history, the NTSB released a report stating the cause of the crash of flight 585 was undetermined. On September 7, 1994, a year after the report on Flight 585 is released, the killer strikes again. Another 737 – this time US Air 427 – crashes near Pittsburg. All 132 passengers and crew are killed. Investigators begin to quickly see some striking similarities between US Air 427 -- and the unsolved case of United 585. Welcome to the OFFICIAL Mayday: Air Disaster YouTube Channel. Mayday: Air Disaster is a dramatic non-fiction series that investigates high-profile air disasters to uncover how and why they happened. Mayday: Air Disaster follows survivors, family members of crash victims and transportation safety investigators as they piece together the evidence of the causes of major accidents. So climb into the cockpit for an experience you won’t soon forget. Subscribe to the OFFICIAL Mayday: Air Disaster channel here: https://bit.ly/2PQnaMI #MaydayAirDisaster #MaydayInvestigation #AirEmergency #MaydayEpisodes #planecrashes #airplanecrashes #aviationaccidents #Fullepisode #airplanedisasterdocumentary #aircrashinvestigation #UnitedAirlines #HiddenDanger