Abstract: To avoid complex, expensive scaffolding for maintaining the upper face of an aircraft fuselage, the object of the present invention is to provide a working level for an aircraft that can be simply and rapidly assembled. This is achieved by the following features: a working level; a supporting structure; and at least one bearing surface, which is configured as a strap, the strap extending in substantially the circumferential direction of the fuselage along a substantially circular or elliptical fuselage cross-section.