The NTSB said airplane pilots were alerted to take evasive action to avoid hitting helicopters at least once a month from ...
19 小时
Air Force Times on MSNDC helicopter route permanently closed after fatal Black Hawk crashThe move follows federal investigators's call for a ban on helo flights on the route, citing a string of near misses in ...
Helicopters will be permanently restricted from flying near Washington, D.C.’s airport on the same route where a passenger jet and an Army helicopter collided in midair, killing 67 people, ...
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