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ATC probably knew they didn't have contact quite a bit earlier than 5 hours after the plane's last communication - but it would make good sense to confirm that
by sethhochberg 13y ago
ATC probably knew they didn't have contact quite a bit earlier than 5 hours after the plane's last communication - but it would make good sense to confirm that the plane is really, actually, 100% sure out of contact before releasing a statement to the public and potentially causing panic.