True. Last K7 I had in the 'shop looked great from a distance. From up
close and a couple of inspection holes later not so much. Ply of the
aileron aux spar had separated from its longerons over 2/3 of its length.
Water ingress from a hole in the transport cover used on the open trailer,
running off the aileron onto the back of the aux spar in the wing. Hard one
to spot, great to catch in time. Aircraft had a full wing inspection/repair
as necessary and partial recover done. Now flying again. Other obvious
spots to look for water ingress damage are the airbrake box, elevator spar
web.

At 17:56 05 October 2015, JJ Sinclair wrote:
The arch enemy of any wooden ship is wood-rot. Wood rot is triggered when
m=
oisture finds its way to the wood. Be extra vigilant that no water
entrees
=
the ship when stored on its open trailer. A drip that hits the aileron
will=
run into the drag spar, in time the spar will rot. I remember a tragic
acc=
ident where undetected wood rot had developed in the drag spar of a
BG-12.
=
When the flaps were deployed at high speed, one flap hinge tore out which
c=
aused the drag spar to fail. This allowed the wing to twist and that
caused=
wing separation.............I hate it when that happens!
JJ