Abstract: A method for assembling an aircraft pylon including a primary structure and at least one internal system positioned at least partially within the primary structure, wherein the assembly method includes a first step of assembling a part of the primary structure so that the interior of the primary structure remains accessible, a step of mounting an internal systems module including at least one support and at least one internal system connected to the support, a second step of assembling the internal systems module and the partially assembled primary structure, a third step of assembling any element of the primary structure not assembled in the first assembly step, and an aircraft pylon assembled by such a method.

Abstract: A turbojet engine including an engine, a fan casing and a nacelle including a fixed structure and a thrust-reversing system having a mobile assembly with a mobile cowl and a frame, in which the mobile assembly is translationally mobile on the fixed structure between an advanced position and a retracted position to define a window between the secondary jet and the outside of the nacelle, inner doors and outer doors, a runner translationally mobile between a first position and a second position, in which each door is mounted articulated by a rear edge on the runner between a stowed position and a deployed position, an actuator for ensuring the translational displacement of the runner from the first position to the second position and an actuator for ensuring the displacement of the frame from the advanced position to the retracted position.