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

1. 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.

2. The assembly according to claim 1 , wherein, for each of the two supports, the plate is fastened to the chassis by at least one damping system.

3. The assembly according to claim 2 , wherein each damping system has:

a screw with a head and a threaded shank;

a nut;

a first ring that has a first shoulder, comprises an elastomer, and is threadably engaged with the threaded shank, such that the first shoulder is against the head;

a second ring that has a second shoulder and comprises an elastomer; and

an outer bearing that is a unitary structure with the plate of the one of the two supports which the damping system fastens to the chassis;

wherein the outer bearing is threadably engaged with the threaded shank and is fitted onto the first ring;

wherein the second ring is threadably engaged with the threaded shank, in a position beneath the outer bearing and with the second shoulder oriented away from the first shoulder and bearing against the chassis;

wherein the threaded shank is in a bore of the chassis; and

wherein the nut is threadably engaged on the threaded shank on an opposite side of the chassis with respect to the head.

4. The assembly according to claim 3 , wherein:

the damping system has an inner bearing threadably engaged with the threaded shank; and

the two rings are on the inner bearing.

5. The assembly according to claim 3 , wherein the damping system has a washer beneath the head of the screw.

6. The assembly according to claim 1 , wherein the nesting system has:

an inner tube comprising a bore that forms the bore for housing the peg;

an outer tube that is coaxial with the inner tube, disposed outside the inner tube, and fastened to the chassis; and

an intermediate tube that is fastened between the inner tube and the outer tube and comprises an elastomer.

7. An aircraft comprising:

a pylon, wherein one wall of the pylon has a window; and

the assembly according to claim 1 ;

wherein the chassis is fastened inside the pylon; and

wherein the opening of the bore is oriented towards the window.