United Airlines announced Monday that it found loose bolts on its Boeing 737 MAX 9 planes, days after an Alaska Airlines plane of the same model lost a door plug mid-air.
In a statement obtained by FOX Business, United explained that its Boeing 737 MAX 9 aircraft will be suspended. 200 MAX 9 flights are also canceled.
"Since we began preliminary inspections on Saturday, we have found instances that appear to relate to installation issues in the door plug – for example, bolts that needed additional tightening," the company explained. "These findings will be remedied by our Tech Ops team to safely return the aircraft to service."
The company said that it is still waiting for final approval from the Federal Aviation Administration on its inspection process.
WHAT TO KNOW ABOUT THE BOEING 737 MAX 9 PANEL THAT BLEW OFF IN MID-AIR
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On Friday, an Alaska Airlines plane was forced to make an emergency landing after its door plug blew out in the middle of its flight.
FAA TO TEMPORARILY GROUND CERTAIN PLANES AFTER ALASKA AIRLINES DOOR BLEW OFF IN MID-AIR
This story is developing. Check back with us for updates.
Fox Business's Landon Mion contributed to this report.
