Assembly having a structure and a reservoir fastened to the structure and containing an extinguishing fluid

An assembly comprising:

• a structure having:
• a chassis;
• two supports;
• and
• a nesting system fastened to the chassis and having a bore with an opening;
• wherein an axis of the opening is parallel to a direction of introduction;
• and
• wherein each of the two supports has a plate fastened to the chassis and a guide that is a unitary structure with the plate;
• a reservoir containing an extinguishing fluid, wherein the reservoir comprises:
• two fastening tabs;
• two bearing tabs distinct from the fastening tabs;
• and
• a peg, wherein an axis of the peg is parallel to the direction of introduction;
• and
• a fastener;
• wherein the reservoir is movable in translation parallel to the direction of introduction between:
• a premounting position, in which each fastening tab and each bearing tab are positioned to rest on one of the plates and each guide is positioned to guide the fastening tab and the bearing tab, both of which are associated with the plate, transversely with respect to the direction of introduction to align the peg and the opening of the bore of the nesting system;
• and
• a mounting position, in which each fastening tab is positioned to rest on one of the plates associated with such fastening tab, the peg is in the opening of the bore of the nesting system, the bearing tabs do not rest on the one of the plates, and the fastener is positioned to fasten each of the two fastening tabs to the one of the plates associated with such fastening tab.