President Trump’s nominee to lead the Federal Aviation Administration was grilled by senators Wednesday on critical safety-related issues, including the required hours needed for pilots, the outdated air traffic control system and the ongoing problems at Ronald Reagan Washington National Airport.

President Donald Trump’s pick to lead the Federal Aviation Administration says the air traffic control system needs “massive upgrading” and he will prioritize its modernization if confirmed to the role.

President Donald Trump's nominee to head the Federal Aviation Administration vowed on Wednesday to hold Boeing accountable after a series of safety issues raised questions about the U.S. planemaker.