FAA chief Steve Dickson said some of the liners would probably not be able to fly for at least some time due to the additional inspections.
He held a meeting with a group of aviation experts following Saturday’s Boeing 777 engine crash as the liner took off from Denver.
“I have instructed them to issue an Emergency Airworthiness Directive requiring immediate or enhanced inspections of Boeing 777 aircraft equipped with Pratt & Whitney PW4000 engines,” Dickson said in a Twitter message.
During the flight, a Boeint 777-200 aircraft with 231 passengers and 10 crew members saw a flaming starboard engine and a vibrating wing. When the liner returned to Denver Airport, its entire engine hood was missing.
No one on the plane or on the ground was injured in the incident, officials said.
According to S. Dickson, preliminary data from the study showed that the turbine blades of liner engines need additional inspection.
“Based on the initial information, we have concluded that the inspection interval for hollow blades that are unique to this model of engines used only in Boeing 777 aircraft needs to be shortened,” the FAA chief said.
He added that FAA officials will meet with representatives of Pratt & Whitney and Boeing on Sunday evening.
The incident involved a UA328 liner on a flight from Denver to Honolulu. The engine failed shortly after the start of the flight.
Residents of the suburbs of Brumfield, Denver, found large plane wrecks in their settlement, including a large metal ring that had fallen in someone’s yard.
The pilots were able to land the liner safely.
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