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Case Center

Helios Airways Flight 522

  • Issue: Aviation accident
  • Result: Confidential settlement

In re Helios Airways Crash near Athens, Greece on August 14, 2005

On August 14, 2005, a Boeing 737 operating as Helios Airways flight 522 crashed north of Athens, Greece, resulting in the deaths of all passengers and crew.  The aircraft was heading from Larnaca, Cyprus to Athens International Airport when ground controllers lost contact with the pilots, who had radioed in to report problems with the air conditioning system.  Press reports about the official investigation indicate that a single switch for the pressurization system on the plane was not properly set by the pilots, and eventually both were rendered unconscious, along with most of the passengers and cabin crew. 

Lieff Cabraser represented the families of several victims, and filed complaints alleging that a series of design defects in the Boeing 737-300 contributed to the pilots’ failure to understand the nature of the problems they were facing.  Foremost among those defects was a confusing pressurization warning “horn” which uses the same sound that alerts pilots to improper takeoff and landing configurations.  The families represented by Lieff Cabraser obtained substantial economic recoveries in a settlement of the case.