Hole in floor under the side door step

[jimyboyle]

I have just got my camper, injected wax into the sills, when i opened the side rear doors the wax had migrated to the open area under the side step.

It was then i saw a hole about 16mm diameter through the area below the step. Same both sides.

Should this have a blanking grommet in it? Seems a big large for a drain hole and perfect access for water to splash in

 

Jim