What was found
***CORROSION*** AFT CARGO BAY FRAME HAS MULTIPLE SPOTS OF CORROSION AT STA 947.5 NEAR S-24R TO S-24L WL 175. REMOVED CORROSION ON AFT CARGO COMPARTMENT FRAME AT STA 947.5 NEAR STR 24L TO 24R WL 175 WAS FOUND TO BE OUT OF LIMITS IAW 53-00-07-1A-1. REMOVED STA 947 LOWER FRAME SECTION FROM STR 24L TO STR 24R IAW SRM 51-40-02-0G-0. INSTALLED NEW FRAME SECTION PART 7531387 PO 783713 IAW SRM 51-40-02-0G-0 AND DWG 147A0040 AND DWG 147A1047 STR 24L-24R STA 947.5.