CO poisoning ruled out in plane crash
Chief Athens coroner Fillipos Koutsaftis said tests were carried out on the remains of the co-pilot, three female flight attendants, an infant and an adult who were on the flight that went down Sunday about 25 miles north of the Greek capital.
More tests were being conducted to determine what could have rendered crew and passengers aboard the Helios Airways Flight ZU522 from Larnaca, Cyprus, unconscious during the flight. The plane was flying on autopilot before crashing.