Transportation Secretary Sean Duffy has promised to hold people to account for the nationwide US ground stop. He has given no detail on what that will involve.
"And frankly, we're going to hold people accountable."
Speaking at Saturday's Transportation Department news conference, Duffy said findings would be shared when the review is done, Yahoo News reports. He said it has not yet been determined whether the fault lay with the contractor or with the router.
Duffy said L3Harris "owns" the network and is the FAA's prime contractor, so he cannot go somewhere else, according to CNN. He called the company the FAA's "legacy provider" of more than 20 years.
FAA Administrator Bryan Bedford said no en route centre "actually went dark" on Friday. CNN reports that as many as 17 of 22 facilities were affected.