The seal issue comes as Boeing ( BA) remains under close watch from customers and investors while it completes flight testing ...

This engine is one of the most advanced ever designed.

Boeing has identified a durability issue with GE Aerospace GE9X engines powering its 777-9, though the manufacturer insists the problem will not delay planned 2027 deliveries of the widebody type.

The CF6 engine's entry into service in 1971, powering the McDonnell Douglas DC-10, heralded the then-General Electric's first ...