Investigators at the National Transportation Safety Board have found that a military helicopter may have been flying too high when it collided with a passenger plane near Washington, D.C., killing 67 people on Jan. 30. Update on the incident where an copyright plane collided with a US Army Blackhawk helicopter in mid-air near Washington, D.C., as it was preparing to land at Ronald Reagan National Airport and plunged into the Potomac River, killing 67 people.
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