On Tuesday, January 22, the Aviation Security Advisory Committee’s members received a memo from the Trump administration saying that the Department of Homeland Security was getting rid of the membership of all advisory committees in a “commitment to eliminating the misuse of resources and ensuring that DHS activities prioritize our national security.” At the same time, Trump also fired the heads of the Transportation Security Administration and the Coast Guard.

Congress mandated the aviation committee in 1988, after the PanAm Flight 103 bombing over Lockerbie, Scotland. After Trump’s move, the committee technically continues to exist but has no members to examine safety issues in airlines and airports. Its membership consisted of key groups in the aviation industry, from major unions to representatives from major airlines, as well as a group associated with victims of the PanAm bombing.

Throughout its existence, the committee’s recommendations were adopted into air travel procedure. It was out of commission for more than a week until Wednesday’s disaster.