Sikorsky UH-60 Black Hawk NTSB hearings: Altimeter errors and ‘stepped on’ transmissions factors in DCA midair collision News NTSB hearings: Altimeter errors and ‘stepped on’ transmissions factors in DCA midair collision American Airlines August 4, 2025 6 months after DCA tragedy US ROTOR Act proposes mandatory ADS-B tracking to close military safety loophole News 6 months after DCA tragedy US ROTOR Act proposes mandatory ADS-B tracking to close military safety loophole ADS-B out July 30, 2025 Argentina cancels Black Hawk tender News Argentina cancels Black Hawk tender Comando de Aviación del Ejército Argentino January 9, 2025
