The Helios 522 “Ghost Plane” crash revealed how a pressurization error and crew hypoxia led to 121 deaths, prompting global ...

Ghost Plane: The Silent Tragedy of Helios Flight 522 Posted: July 4, 2025 | Last updated: July 4, 2025 Helios Flight 522 became known as the "ghost plane" after it flew silently on autopilot for ...