United Airlines to ground Boeing 737 Max 9 planes after panel blew off Alaska Air flight

United Airlines is preparing to ground dozens of its Boeing 737 Max 9 aircraft for inspections, a day after a panel blew out of an Alaska Airlines flight, according to a person familiar with the matter.

The announcement to ground the planes could come as early as Saturday, the person said. Alaska Airlines announced it would ground its Max 9 fleet after the incident on Friday.

No serious injuries were reported aboard Alaska Airlines Flight 1282, according to federal safety officials. The plane returned to Portland shortly after takeoff on Friday after a pressurization issue was reported. Boeing delivered the planes late last year.

The Federal Aviation Administration didn’t immediately comment.

This is breaking news. Please check back for updates.