What was found
AFT PIT RIGHT SIDE PANEL SUPPORT SHIELD HAS CORROSION BETWEEN BS 767 AND BS 787 RBL23. GROUNDED - YES. SUPPORT SHIELD AFT CARGO RT SIDE, FOUND TO BE OUT OF LIMITS, DUE TO PUNCTURE IN RADIUS AND CORROSION IAW SRM 53-00-53-1A-2 PARAGRAPH(4B). REMOVED SHIELD ASSEMBLY IAW SRM 51-40-02, LOCATED AND DRILLED NEW SHIELD ASSEMBLY IAW SRM 51-40-05 & BAC DWG 146A8127 REV C, INSTALLED SUPPORT SHIELD RT SIDE AFT CARGO IAW BAC DWG 146A0081 REV B & SRM 51-40-02.