What was found
CARGO DOOR CUT OUT LOWER SILL CORRODED. BLENDED MULTIPLE SPOTS OF CORROSION ON LOWER CARGO DOOR SILL IAW SRM 51-10-03, DETERMINED TO BE OUT OF SRM 53-31-15 LIMITS. REMOVED LOWER SILL IAW SRM 51-40-02. LOCATED, DRILLED AND ALODINED NEW LOWER SILL IAW SRM 51-20-03 AND CPM 51-21-04. INSTALLED NEW LOWER SILL IAW SRM 51-40-02. APPLIED SURFACE PROTECTION IAW CPM 51-21-05, 51-21-06 AND ETN GN-51-017.