What was found
AFT CARGO FRAME HAS CORROSION AT FR 87 BTWN STR 28R - STR 27R. (MAJOR REPAIR) (LEVEL 2 CORROSION) BLENDED CORROSION ON AFT CARGO FRAME 87 BTWN STR 28R - 27R IAW E-175 SRM 51-10-03. ORIGINAL THICKNESS .063" IAW SRM 53-23-04. MATERIAL REMOVED .040" MATERIAL REMAINING .023" OUT OF ALLOWABLE LIMITS IAW SRM 51-75-16. LOCATED AND DRILLED NEW AFT CARGO FRAME 87 PER SRM 51-40-02. INSTALLED SHEAR CLIP IAW SRM 51-40-08. INSTALLED INTERCOSTAL IAW SRM 51-40-08. RESTORED FINISH TO FASTENERS PER SRM 51-23-06 AND ETN-EJ- 51-015. RESTORED FINISH TO FUSELAGE SKIN REF EMB 175 SRM 51-23-06 AND ETN-EJ-051-015. APPLIED CIC TO AFT CARGO PER CPM 51-25-00. REMOVED AND REPLACED LWR FRAME SECTION AT FR 87 IAW SRM 51- 40-08.