U.S. regulators have ordered the immediate inspection of Boeing 777 planes equipped with the model of engine that suffered a catastrophic failure on Saturday.
United Airlines Flight 328 had to make an emergency landing in Denver after its right engine blew apart just after takeoff.
Saturday's incident has prompted the grounding of dozens of Boeing 777 planes which are fitted with the Pratt & Whitney PW4000 engine.
The U.S. Federal Aviation Administration wants operators to inspect the large titanium fan blades on the front of each engine, before any further flights.
Boeing said it supported the FAA's guidance and would work through the process with its customers.
United Airlines, Egyptair, and operators in Japan and South Korea have all said they will not be flying their Boeing-777s.
United has warned of possible disruptions to its cargo flight schedule in March as it juggles its fleet following the grounding of the planes.
Saturday's engine failure is a fresh blow for Boeing.
The world's largest aerospace company is already trying to repair its image following grounding of its flagship 737 MAX.
The plane model was forced to be suspended from service for nearly two years after two deadly crashes.