On my 1978 Nacra 5.2, a padeye on the rear tramp crossbar has pulled out. The padeye secures the heavy metal lines that run between the crossbars, hold the jib blocks, and serve as hiking straps (not sure what those lines are called.)

The area around the (former) padeye rivet looks badly corroded; the hole is hogged out and irregular. The other padeyes on both front and rear crossbars look like they have similar corrosion. I'm guessing it's galvanic.

How can I fix this? Can the damaged sections of bar be cut out, rewelded, drilled, and reriveted? Or is the whole crossbar a loss?

I've only had the boat a few months, sailed it twice, really looking forward to it, and so this is scary. It looks like similar corrosion has damaged the rudder crossbar attachment points -- I lost the rudder crossbar on the same trip. Maybe there's more corrosion elsewhere. Not so good.

Hoping for some reassuring advice,
thanks,
-Alex