One possibility,? on my Sabre 34-I? ?I had water intrusion from the handrails that traveled down and came out above the chart table.? ? I removed the handrails, opened up the screw holes with a forstner drill bit slightly smaller than the base of the handrail. Dug out all the wet core.? ( just about everything under the handrail)? Aired everything out and then potted the holes with Epoxy.? Re-drilled and re-installed the rails.? Never leaked again.? ?