What was found
DURING ROUTINE C-CHECK INSP, FOUND MAIN CARGO COMPARTMENT AFT FITTING CRACKED AT STA 1160.000, LONGERON 20RT. REMOVED CORROSION AND FOUND OUT OF LIMITS. REMOVED CRACKED FITTING. CLEANED, TREATED, AND PRIMED AERA. INSTALLED NEW FITTING IAW SRM 51-1-8, SRM 53-2-0, SRM 51-1-20D, SRM 51-1-8B, SRM 51-1-20D, SRM 51-1-21, AND SRM 51-3-1.