Spar issue

[shipljl]

Re: Spar issue

There's been something like 3000 hours on the plane since the repair.

[wmfife]

Re: Spar issue

Before you replace it with fresh stock you might want to find out if that 1964-installed Spruce was old-growth. I'm betting it was. Count the lines per inch top to bottom then compare with replacement stock before you commit yourself. Virgin forests have been depleted scandalously in the almost half-century since and much of the really good wood has gone overseas. Long as no dry rot is detected you just could be better off keeping it or at least finding a clean original of equal vintage minus the notch. (...OR perhaps dealing with a Japanese wholesaler...)

Meanwhile you may want to check out or even invest in a copy of EAA Building Techniques - WOOD by Poberezny & Schmid, c.1991 /rev.1998 /-?. It's a virtual gold mine of information about aircraft-grade woods and what to look for and why. Worth the few dollars to have a copy in your aviation library.

Just a heads-up FWIW from a fmr USDOI tech.
(;f
...Now in retirement living in FL watching the exotics rapidly taking over!