Abstract: A rigid structure of a suspension pylon for an aircraft engine, which is in a shape of a box closed by first and second box side panels. The structure includes inter-rib spaces, each space delimited by two directly consecutive box transverse ribs. For each inter-rib space forming part of a group including at least three arbitrary and directly consecutive inter-rib spaces, a single access opening is provided on the side panels, the openings arranged alternately on the first and second side panels.

Abstract: The invention relates to a rigid structure (8) of a suspension pylon for an aircraft engine, which is in the shape of a box closed by a first and a second box side panels (34a, 34b), this structure comprising inter-rib spaces (381 to 388), each space being delimited by two directly consecutive box transverse ribs (36). According to the invention, for each inter-rib space forming part of a group comprising at least three arbitrary and directly consecutive inter-rib spaces, a single access opening (421 to 428) is provided on the side panels, these openings being arranged alternately on the first and second side panels.