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This is the initial cleaning and inspection of my KR1 boat project
I purchased this KR1 boat project in January of 2011
  
    I worked for 2 weeks cleaning the 30 year old dust off the KR1 boat.  Upon inspection I've discovered some minor damage to the bottom of the fuselage in the 3rd bay aft of the seat back support. You can see part of what I'm talking about in the 2nd picture on the top row of pictures.  There is no damage to the wood (thanks to it being well coated with a sealer) however it is evident that it was exposed to moisture, the sealer is deteriorating (flaking off) but only in that bay. The main damage was to the glue, the glue has simply deteriorated around the perimeter in the bottom of that bay.    Now if you notice in the 2nd row of pictures, 4th picture over,  you can see a dark discoloration on the fuselage floor that begins aft of the main spar and extends into the next bay under where the old sling type seat was, no damage to the glue or wood just a dark discoloration on the floor plywood. This project sat dormant for a long time, i believe it was mothballed around 1980.  Some of its storage time was in a old barn.   I'm guessing that the dark discoloration underneath the seat was where some old barn cat took his naps, and I'm going to also guess that where the glue has deteriorated is where he may have taken a leak or two on some of those nights when it was just to cold and he was just to old to leave the cabin.  I just don't think that such a small amount of exposure to moisture (water) would have deteriorated the glue to the point where it just crumbled apart, however exposure to the salt in urine may have over time dried out the glue to the point where it failed and got all crumbly. Of course this is all just speculation.  It is fixable.  One good thing is that I didn't discover any cracks in the longerons. and all of the rest of the glue joints look good.

Other problems that I discovered
 2, The 3/32"  3 ply mahogany plywood webbing on the wing spars was installed with the grain of the plywood running parallel to the spars.  The plans call for the plywood webbing to be installed perpendicular to the spars.  This will need to be changed.
 
 3, The firewall also has deviations from the plans.  Both the upper and lower wood frame pieces of the front of the firewall (where the engine mounts bolt to)  have been made wider (as in taller) than the plans call for (I believe this was an attempt to beef up the firewall).  Also, instead of sheating the front of the firewall with 1/4" plywood as per the plans, it was sheeted with 3/32 3 ply mohagany, the same stuff  as used for skinning the sides and bottom of the fuselage.  The plywood shelf still needs to be installed as well.

This bring me to problem # 4, The aft section of the fuselage was sheeted with 1/16 mahogany plywood, sides and bottom.   The first 2 problems look like they will be easy to fix however I haven't worked out what to do with the last 2 problems. Oh, there is minor damage to the right side elevator, no big deal, easy fix, famous last words.   Other than that every thing else looks very good.