That would work, but I don't think you need to worry about a light spot since epoxy darkens wood.

I'm also not sure that you need to sand all the way down to bare wood. Sanding away just enough epoxy to give you a clean, rough surface would be good enough for applying a patch.

Laszlo

I'll agree with Laszlo, there shouldn't be any need to sand to bare wood to fix a minor crack like that.  Just get a rough surface for a mechanical bond as well as the chemical bond and you should be fine. 

Extend a piece of glass a couple inches beyond the terminus of the crack, just to provide the extra strength but that should be plenty.

           Thanks for the help. Sounds like a simple solution. Just to clarify te deck is cracked completely through the okoume 6" long. I also noticed the deck is not attached to th bulkhead. Should there be a fillett between the deck and the bulkhead? Thanks again for the help. Much appreciated.

Definitely. Otherwise

1. you don't get any structural support and the deck may crack; and

2. you end up with a wateright compartment that doesn't go all the way to the deck. You might have heard of another vessel that was built that way - the Titanic.

Laszlo