Prepared and installed multiple closeout panels to the inside of the fuselage. The left bagage cover, the back seat floor panels, the rear seat cover panels to the side walls, the aft and fwd fuselage tunnel cover assemblies, the flap torque tube covers, the fwd wire covers. All needed to be either match drilled or nutplates installed in order to attach other covers to the edges. Before closing up any areas I always place insulation along the side walls and attach with spray adhesive.