What was found
VERTICAL STA LT STA 1230 ATTACH ANGLE FUSELAGE TO VERTICAL IS CRACKED. REMOVED CRACKED ATTACH ANGLE IAW DC9 SRM 51-30-2 & 51-30-5 FABRICATED PER DWG 5912188 IAW DC9 SRM 51-10-2. HEAT TREAT OF NEW ANGLE ACCOMPLISHED ON 2446N01636. LOCATED, DRILLED, TREATED AND PRIMED ATTACH ANGLE IAW DC9 SRM 51-10-4, 51-10-3. INSTALLED ATTACH ANGLE IAW DC9 SRM 51-30-2 & 51-30-5 PER DWG 5912188.