The four flight crew members of a passenger jet that collided with an Army helicopter near Ronald Reagan National Airport Wednesday were based out of Charlotte, American Airlines CEO Robert Isom said in a video update Thursday afternoon.

Wendy Shaffer “was the heart of her family” with a “warm, loving home filled with laughter and care,” her friends said.

CHARLOTTE, N.C. — The crew that was on board an American Airlines jet that collided with an Army Black Hawk helicopter near Washington, D.C. was based in Charlotte, the airline confirmed on Thursday. The airline is not identifying the crew members out of respect for the families, according to CEO Robert Isom.