Water leak at Air Spoiler

Discovered evidence of a leak on the rear panel over the bed of our Rpod (2011 RPT177).  The amount of water is small, but it is a leak nonetheless. The spoiler is right above the panel and sure enough it has lifted up on on each edge and in several locations along the leading and trailing edge of the spoiler.   I tested the screws that are supposed to be holding the spoiler on and they turn freely not engaging competent wood.  With a lot of effort I was able to tease out a couple of screws and they are corroded. Obviously they have passed water through to the wood spar underneath the roof.   The spoiler design seems to be very poor.  No effort was made to prevent water movement at each screw and once the screws lost their grip the spoiler was destined to lift allowing large quantities of water to move in between the spoiler and the roof.  There is apparently a significant hole in the roof where the wiring to the lights on the spoiler passes.  That is what I believe was the pathway for the water to the interior panel.

Good description - ruffles potato chip - what were they thinking putting those things on?  Doomed to fail. I am going to try Eternabond roof sealant tape to hold the whole thing on, since the screws have failed,  and hopefully stop the leaks.  Have researched it pretty thoroughly and that sealant tape looks like it might do.  Still concerned about the shape the wood rafter is in.  

Me to.  I'm going to think long and hard about digging into it.  Am hoping someone on the forum has a lot of experience in this issue.  Hopefully, just stopping the leak and securing everything is enough.

Personally I would remove the spoiler and completely seal up the hole with just the wire hanging out, so the spoiler isn't the weatherproof part of the equation.

I am definitely taking the spoiler off and plugging the wire access hole so it is water tight like techntrek suggests.  I found a reference that indicated the hole could be 3 or 4 inches in diameter.  Unbelievable.  I think the high brake light is a requirement so gotta put the spoiler back.  Also it is probably necessary to cover the wire access hole too.  My main problem right now is getting the 15 -20 screws out to remove the spoiler.  So far only one of four actually bites into anything and unscrews.  It is very awkward and frustrating job.  I can't really get into it until next week.  Will let you know how it proceeds.