Betty Ann Ong (Chinese: 鄧月薇; February 5, 1956 – September 11, 2001) was an American flight attendant aboard American Airlines Flight 11, the first airplane to become hijacked during the September 11 attacks. Ong is notable as having been the first person to alert authorities to the hijackings taking place that day. Shortly after the hijacking, Ong notified the American Airlines ground crew of the hijacking, staying on the telephone for 25 minutes to relay vital information that led to the closing of airspace by the FAA, a first in United States history. For this, the 9/11 Commission declared Ong a hero. — from Wiki
The pain and the wound is still fresh for her family after 20 years: