> hollow fan blades that are unique to this model of engine, used solely on Boeing 777 airplanes Hamilton Standard fan blades used to have cracks that went un

> hollow fan blades that are unique to this model of engine, used solely on Boeing 777 airplanes Hamilton Standard fan blades used to have cracks that went unnoticed during rebuilds because of faulty inspection and repair procedures. This caused 3 accidents including this one in Georgia - https://en.m.wikipedia.org/wiki/Atlantic_Southeast_Airlines_Flight_529 https://en.m.wikipedia.org/wiki/Atlantic_Southeast_Airlines_....