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russian plane cockpit recorder lah dnt erin _00001423
russian plane cockpit recorder lah dnt erin _00001423

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    Will cockpit recorder reveal why Russian plane crashed?

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Will cockpit recorder reveal why Russian plane crashed?

The cockpit recorder can be crucial in an air disaster investigation. CNN's Kyung Lah reports.

Will cockpit recorder reveal why Russian plane crashed?

The cockpit recorder can be crucial in an air disaster investigation. CNN's Kyung Lah reports.