On March 12, a Black Hawk helicopter crashed outside Kandahar, killing five U.S. troops.

NPR: 7 American Service Members Killed In Afghanistan

She was later flown out on a Black Hawk helicopter for more intensive treatment.

CNN: 's Karl Penhaul

Army Chief Warrant Officer 3 Michael Durant, a Black Hawk helicopter pilot, was shot down in 1993 during a combat mission in Mogadishu, Somalia.

CNN: Videos of POWs a staple of war propaganda

The Black Hawk helicopter crashed at about 10 a.m. in the Shah Wali Kot district in Kandahar, a hotbed of the insurgency, Afghan and Western officials said.

WSJ: NATO Helicopter Crash Kills 11 in Afghanistan

The Black Hawk is the US's most important combat helicopter, designed to move quickly into hostile environments and deliver or collect troops and armaments.

BBC: News | In Depth | Military Fact Files