Investigators are baffled: The on-board terrain warning system on the Sukhoi Superjet 100 which went down on May 9, 2012, sounded 40 seconds before the crash - so why did the pilots ignore it?
The state-of-the-art Russian aircraft Sukhoi Superjet 100 takes flight on what's meant to be a tight, 30-minute loop over Indonesia to impress potential buyers and journalists. But the trip turns catastrophic after pilots lose their way in the clouds and veer straight into a mountain at 240 mph. Just reaching the wreckage will be one of the most challenging salvage operations Indonesian investigators have ever faced. Finding an explanation for the crash will prove just as troubling.
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