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ac pinger demo_00010712.jpg
ac pinger demo_00010712.jpg

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    What a black box 'ping' really sounds like

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What a black box 'ping' really sounds like

Safety analyst David Soucie demonstrates a black box 'pinger,' similar to the one on Flight 370.

What a black box 'ping' really sounds like

Safety analyst David Soucie demonstrates a black box 'pinger,' similar to the one on Flight 370.