Rigid aircraft pylon structure in contact with a fuselage lateral extension for attachment

An aft part of an aircraft comprising:

• at least one engine assembly including a turbine engine and a turbine engine mounting pylon, the engine assembly being added onto a side of an aircraft structure;
• the pylon comprising a rigid structure offset radially from a longitudinal axis of the turbine engine along one direction of separation, and first attachment means for assembly of the turbine engine on the rigid structure and second attachment means fixed firstly to the rigid structure and secondly to the aircraft structure;
• the rigid structure comprising a longitudinal central box and a connection box carried by the central longitudinal box and projecting from it along a first direction of a line of separation from the turbine engine towards the rigid structure;
• and
• the aircraft structure comprising a fuselage lateral extension projecting from the fuselage in a second direction along the line of separation, opposite the first direction,
• wherein one of the two entities among the lateral extension of the fuselage and the connection box is pressed into contact with the other entity, below it, the second attachment means being arranged between these two entities.