Wednesday will feature a hearing in the Senate with FAA leadership and another in the House with Transportation Secretary Sean Duffy.

The regulator still uses some computer systems that rely on floppy disks and other outdated hardware, according to one air traffic control union leader.

On Wednesday, Transportation Secretary Sean Duffy testified in front of the House Appropriations Committee before meeting with airline heads to discuss additional flight cancellations. Duffy is asking Congress for billions of dollars in up-front funding to modernize the FAA.