Why was Concorde grounded?

Concorde was grounded primarily due to a combination of safety concerns and economic factors. The tragic crash of Air France Flight 4590 in July 2000, which involved a Concorde, raised significant safety issues, leading to a temporary suspension of its operations. Additionally, the post-9/11 decline in air travel demand, high operating costs, and the aging fleet further contributed to its retirement in 2003. Ultimately, these factors made it unviable for airlines to continue operating the supersonic passenger jet.