400 FLY Rain leak at back of salon

[TMorgan 400 Fly]

Anyone with a 2016-2018 FLY or Sundancer may have had this experience. Water started dripping from behind the ceiling panels at the back of the salon by the sliding doors. Recaulked every evident seam. Possibly emanating from the port side of the vessel, maybe from the area of the built-in refrigerator on the flybridge where it is difficult to access the seams? I thought covering it would fix this problem, but even condensation/dew triggers the leak.

One of the techs who looked at this hypothesized that the superstructure was removed for transport, then somewhere in re-attaching it a gap was left. But I can't see an opening that would account for that...

Is the only way to diagnose the leak to stand with a hose and saturate the deck or superstructure until a leak materializes? When I hose her off, I don't get the leak...

Wit's end.

 

[ttmott]

Look at the seam above the front solon windshield.
Water can leak in there and run along the inside of the seam to the back of the boat.

 

[TMorgan 400 Fly]

Look at the seam above the front solon windshield.
Water can leak in there and run along the inside of the seam to the back of the boat.

Looks tight, but there is a sluice that runs from the upper helm, along the outer edge of the flybridge and drains back inside the the flybridge into one of the drain holes. It was filled with caulk and that caulk is starting to degrade. I'm not sure if there is a seam there, but I am prepping that caulk bead to strip.