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In the early morning of Aug. 15, 2005, climbing through 15,000 ft, with cockpit warning horns blaring, the captain of Helios Airways Flight 522, a Boeing 737 in trouble over Cyprus, radioed to ground engineers that āthe ventilation cooling fan lights were off.ā The message was not clear, and a ground engineer asked him to repeat (āMissed Opportunities.ā ASW 1/07).1