Your pictures are a bit too close to get a good perspective with respect to the deck. However, it looks like some water has seeped in to the steel backing plates of your aft stanchions and they are expanding as they rust. You'll have to cut them out, replace and reglass. Simply patching the crack will not stop the rust from continuing to bloom and expand - the crack will open up again.
Cheers,
Craig Briggs, SN#68 Sangaris
---In amelyachtowners@..., <mac.provan@...> wrote :
I'm sure others must have had problems similar to this. I've attached a couple of photos that highlight the issue. This is not a one-off but re-occurs every few years. I'd really like to get to the bottom of it but haven't managed to find any info in the forum. Hull # SM356, issue to port and starboard aft. Expansion issue?
