General electric has just announced that the very first 3D printed components have been added to their GE90 jet engines. In a rollout which will include 400 such engines, a 3d printed T25 sensor housing will be retrofitted to them all. The housing is created using a sintering process of a cobalt-chrome alloy. By 3D printing these components they are able to create parts which are lighter and actually function much better than the current housing found on many of the engines today. This is just one of many components which will eventually be 3d printed and and retrofitted or placed into newer GE engines in the years ahead. More information on these 3d printed parts and GE's future additive manufacturing plans can be found here: http://3dprint.com/58327/ge90-3d-print-sensor-housing

Below is a picture of the 3d printed T25 sensor housing by GE: