The additive manufacturing and 3-dimensional manufacturing technology offer unparalleled flexibility in terms of part geometry, material composition and manufacturing time. There are many difficulties in manufacturing parts in the aerospace field. Thin-walled aircraft engine components and structures with complex geometry, the difficulties encountered in the processing of materials, are the other main factors that compel the aviation industry to adopt the use of additive manufacturing technology. It is progressing in the direction of radically changing the aerospace sector in the production of extremely complex and lightweight parts with material wastes that are almost none. The aerospace engine industry requires stronger, lighter and more durable components. Today's additive manufacturing technology provides new possibilities to meet these situations. In addition, the aviation industry has combined the additive manufacturing process from concept design to end-use parts and repairs. Areas of application include rapid prototyping of components in the design phase using plastic and metal, followed by repair of damaged parts instead of direct production, scrapping or replacement of mold, tool and complex shape metal parts for mass production. Laser Metal Spool (LMD) Technology is the best method to repair aviation components. In this study, research and development activities carried out in the field of additive manufacturing in the aerospace industry have been examined and a literature review has conducted. In the experimental study, a scaled 3D prototype of an exemplary rocket equipment was produced using 3D printer technology. The pressure parameters of the study have been examined.