Boeing 737-300 crash, Aug 14, 2005 (121 killed), Grammatiko
Boeing 737-300 accident on August 14, 2005 near Grammatiko, Attica, Greece with 121 fatalities. Cause: Pressurization mode selector left in manual, the...
- Date: August 14, 2005
- Aircraft: Boeing 737-300
- Location: Grammatiko, Attica, Greece
- Fatalities: 121
- Phase of flight: En route
- Cause: Pressurization mode selector left in manual, the crew did not recognize the warnings and became incapacitated by hypoxia, and the aircraft continued until fuel was exhausted. Operator and regulatory oversight deficiencies were latent causes.
A Boeing 737-300 operated by Helios Airways on flight ZU522 from Larnaca to Prague via Athens lost cabin pressure in the climb after the pressurization mode selector had been left in manual following earlier maintenance. The flight crew were incapacitated by hypoxia, and the aircraft flew on autopilot until both engines flamed out from fuel exhaustion. It crashed on a hillside near Grammatiko, north of Athens, killing all 121 people on board.