Eric: there is foam "edging" running under the black instrument-panel covering (cockpit-cover?), along the perimeter of instruments.
That could be what you see. The foam disintegrates with age and floats all over the nose piece - I had it coming out even at the steering head cover, it took me a while to figure out what it was.
If that is what it is, no panic. Schedule taking care of these during next serious maintenance, because you need to pull off the tupperware and the nose piece, to be able to tilt away the black cockpit cover.
I removed all the leftover crumbling foam. I did not have anything more suitable and wanted to get going with my maintenance, so I used 3/4" thick Frost King adhesive foam tape, between the black cover and the clear instrument panel "glass". In sections I had to double this up. I do not expect this to last too well, for next off-season work I'll try to get some better adhesive, thicker UV-resistant foam.
I am not really sure what is the function of the foam - possibly it prevents light bleed-through in the instruments, and does bit of vibration damping.
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