What was found
DURING A C-CHECK, VERT STAB FIN STA 180, STR 5-8 RT IS CRACKED AT FRAME ATTACH BOLT. REMOVED FASTENERS FOR ACCESS, CUT OUT DAMAGED STIFFENERS AND REMOVED FILLER IAW B727 SRM 55-30-4 FIG 1 (5 X 3). FABRICATED STIFFENER REPAIR P/N BAC1517-1367 PO 501953 DIM 5 X 3 INCH SPLICE P/N AND 10134-1201 PO 501952 DIM 19 X 2.25 FILLER MAT'L 7075-T6 .100 PO 501952 DIM 19 X .25 INCH CLIP P/N AND 10133-1401, FILLER P/N 7075-T6 .090 PO 501952. TREATED, PRIMED STIFFENER, AND AREA IAW B727 SRM 51-10-2. INSTALLED STIFFENER IAW B727 SRM 55-30-4 FIG 1.