Flights Gone Wrong

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3 videos

  1. Helios Airways Flight 522: How a 737 Flew On After Crew Hypoxia

    Event: 2005Published: 24 Oct 2026

    Helios Airways Flight 522 took off from Larnaca in August 2005 with its pressurisation selector left in manual after night maintenance, and its pilots mistook the cabin altitude horn for a takeoff…

    View event: Helios Airways Flight 522 (2005)
    Location
    Grammatiko, about 33 km north-west of Athens International Airport, Attica, Greece

  2. Helios Airways 522: The Switch, the Horn and Andreas Prodromou

    Event: 2005Published: 16 May 2026

    Airline captain Petter Hörnfeldt traces Helios Flight 522 from the airline's audit failures and the 737's history of pressurisation faults to the overnight test that left the selector in manual.

    View event: Helios Airways Flight 522 (2005)
    Location
    Grammatiko, about 33 km north-west of Athens International Airport, Attica, Greece
    Phase of flight
    Cruise

  3. Helios Airways Flight 522: Inside the Ghost Plane Inquiry

    Event: 2005Published: 14 May 2021

    This Mayday episode follows Greek investigators as they work out why a Helios Airways 737 flew silently for almost three hours before crashing near Athens in August 2005, killing all 121 on board.

    View event: Helios Airways Flight 522 (2005)
    Aircraft
    Boeing 737
    Location
    Grammatiko, about 33 km north-west of Athens International Airport, Attica, Greece
    Phase of flight
    Cruise