Recoil Beam Cover:
The gun’s recoil beam had two protective, sliding steel covers to keep water and debris from falling into the “U” shaped beam. Despite these covers, rain water had been entering and filling the inside of the beam. These covers were removed, corrosion was removed from inside of the beam, the inside was thoroughly coated with Ship-2-Shore corrosion control coating (see page 20), the open areas of the beams were then fitted with 5 mil Mylar adhered with urethane caulk - completely sealing these spaces against infiltration by water, then the covers were replaced.
