Boeing Faces Setback as 777-9 Test Planes are Grounded
Latest Stumble in Years-Long Development Saga
Boeing has announced the grounding of its 777-9 test planes due to a manufacturing issue.
Problem with Key Part Identified
The issue lies with a "key part" of the aircraft, according to Boeing.
The grounding comes as a setback for Boeing, which has faced delays and challenges in developing the 777-9.
