What was found
DURING ROUTINE C CHECK INSPECTION FOUND MAIN CARGO COMPARTMENT AFT RING ANGLE CORRODED AT STATION 1530.000 LONGERON 26-28 LT. REMOVED CORROSION. FOUND OUT OF LIMITS. REMOVED EXISTING REPAIR ANGLE. FABRICATED REPAIR ANGLE SPLICE. CLEANED, TREATED, AND PRIMED AREA AND REPAIR PARTS. INSTALLED REPAIR ANGLE IAW SRM 51-1-8 PAGES 17-18, SRM 53-2-0, SRM 51-1-21, SRM 51-3-0, SRM 53-2-5, SRM 51-1-1, SRM 51-1-8B, AND SRM 51-3-1.