Plane-Crash Warning Signs

A Japan Airlines jetliner slammed into a mountain in August 1985, killing more than 500 people. It remains the world's deadliest single-plane accident. The plane departed from Tokyo bound for Osaka. But trouble began just 12 minutes after takeoff. The cockpit voice recorder caught JAL Flight 123 Captain Masami Takahama saying that something exploded, and the crew fighting desperately to bring the Boeing 747 under control.