The importance of the technology is already being seen at a number of large companies such as GE who have made enormous strides in industrial 3D printing by opening a facility to produce the 3D printed fuel nozzles for its advanced LEAP jet engines, and Rolls - Royce announcing they will flight - test what it claims to be the largest 3D printed aerospace component to ever power an aircraft. (qaeducation.co.uk)
GE acquired 3D - printing specialists Morris Technologies in 2012, and uses 3D printing to make fuel nozzles for its new LEAP jet engine. (businessinsider.com)
Just pop open fuel door and insert fuel nozzle. (autolist.com)