NTSB 建议禁止直升机在里根国家机场附近飞行，以防止在致命坠机后发生空域冲突。 NTSB recommends banning helicopter flights near Reagan National Airport to prevent airspace conflicts after a fatal crash.

美国国家运输安全委员会 （NTSB） 建议禁止直升机在飞机降落时飞越罗纳德·里根国家机场附近的波托马克河部分地区，此前 1 月份一架客机与一架陆军直升机相撞，造成 67 人死亡。 The National Transportation Safety Board (NTSB) recommends banning helicopter flights over a part of the Potomac River near Ronald Reagan National Airport when planes are landing, following a January crash between a passenger jet and an Army helicopter that killed 67 people. NTSB 发现飞机和直升机之间现有的间隔距离不足，导致频繁的近距离通话。 The NTSB found the existing separation distance between planes and helicopters was insufficient, leading to frequent close calls. 敦促美国联邦航空管理局 （FAA） 为直升机寻找永久替代航线，以避免共享空域。 The Federal Aviation Administration (FAA) is urged to find permanent alternate routes for helicopters to avoid shared airspace.