WASHINGTON, July 30 (Reuters) - The National Transportation Safety Board opened a three-day investigative hearing Wednesday into the fatal collision in January between a U.S. Army helicopter and an American Airlines AAL.O plane that killed 67 near Reagan Washington National Airport.
The NTSB will review the Army Black Hawk helicopter air data systems and altimeters as well as the Federal Aviation Administration's oversight of Washington airspace and air traffic. One key focus is the performance of the helicopter altimeter and the helicopter's altitude at the time of the crash.
(Reporting by David Shepardson; Editing by Chizu Nomiyama )
((David.Shepardson@thomsonreuters.com; 2028988324;))
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