What was found
DURING A C-CHECK, VERT STAB FIN STA 204 RT SIDE UPPER RUDDER SKIN FWD HAS SURFACE CORROSION. REMOVED CORROSION FOUND TO BE BEYOND LIMITS, REMOVED EXISTING RIVETS, CUT OUT DAMAGED AREA DIM 3.5 X 2.25 INCH, FABRICATED REPAIR DOUBLER FROM 2024 T3 .032 PO 9001634 DIM 5.75 X 4.5 INCH AND FILLER FROM 2024 T3 .016 PO 9001660 DIM 3.5 X 2.25 INCH. TREATED, PRIMED AND INSTALLED REPAIR PARTS IAW B727 SRM 55-40-1, 51-30-2, 51-10-2 AND 55-20-3 FIG 1.