Boeing developed a flying boat for the Maritime Self-Defense Force.

Boeing has calculated the chances of a series of crew errors leading to CFIT.

Boeing, which builds more than half the world's commercial airliners, is understandably keen to draw attention to what can go wrong besides planes.

A recent analysis by Boeing forecasts that unless safety is improved, jet airliners could be falling out of the sky at the rate of once a week by the year 2010.