Chief Warrant Officer 2 Thalia Ramirez. Ramirez was killed when her OH-58D Kiowa Warrior helicopter crashed in eastern Afghanistan Sept. 5, 2012. Ramirez was assigned to Troop F, 1-17 Air Cavalry Regiment, 82nd Combat Aviation Brigade, 82nd Kenya. She joined the Army in 2003 as a water purification specialist. She became a pilot in 2008 and was on her second deployment. She had flown more than 270 missions and 650 hours during her latest tour of duty.