FAA working 'nonstop' on United Airlines Boeing 77 engine failure probe - administratorReuters • 02/23/21
Damage to fan blade in United Boeing 777 engine consistent with metal fatigue - NTSBReuters • 02/23/21
The 737 Max is no longer Boeing's biggest problem, after yet another safety groundingCNN Business • 02/22/21
Boeing's 777 aircraft grounded by UK after engine failure rains debris down on DenverProactive Investors • 02/22/21