PFA/LAA issued Mod/193/006 for all Rans S4 & S5.After finding cracks on the tailplane bracing wires fixing tangs on the bigger S6ESD, a mandatory notice (MPD) was issued.
S4 & S5 must also be inspected within 5 hours, then at every Annual.
The 8 flat stainless steel tangs are fixed by 3/16 bolts through a choice of holes to allow tension adjustment when built. The wire end tangs are in 4 pairs at easily accessible places each side fore & aft of the tailplane at half span. They need cleaning, exposing and closely inspecting with a X10 magnifying glass. The PFA example showed a crack from a hole to the plate edge. These multi bolt hole end tangs designed to provide a choice in small increments for bracing wire tension setting.
N.B.If you undo & remove the bolt completely you risk forgetting which hole was in use.
The notice requires inspection of similar tangs, especially flying control cables, elsewhere. 
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