The Black Hawk pilots who collided with an American Airlines plane last month may not have heard vital information given by air traffic control to fly behind the passenger jet seconds before the

Voice recordings from the Black Hawk helicopter involved in the crash with a commuter plan in Washington, DC, on January 29 have been released by the NTSB in a briefing for reporters Friday.

A Black Hawk helicopter crew may not have heard key instructions from air traffic control before it struck an American Airlines jet near Washington DC a fortnight ago, according to black box data.