What was found
***CORROSION*** ON INTERCOSTAL AT AFT CARGO BAY BS727A+2 LBL17 WL150 ; / INSTALLED NEW INTERCOSTAL IN ACB BS727A+2 LBL17 WL150 IAW SRM 51-40-02 AND DWG #146A7500.;LOCATED; DRILLED; AND DEBURRED NEW INTERCOSTAL AT BS 727A+2 LBL17 WL150 IAW SRM 51-40-05 AND DWG #146A7500. OK TO INSTALL.;RECEIVED NEW INTERCOSTAL FOR ACB BS727A+2 LBL17 WL150 PO #813866.;REMOVED INTERCOSTAL IN ACB BS727A+2 LBL17 WL150 IAW SRM 51-10-02;VERIFIED RECEIVED NEW INTERCOSTAL FOR ACB BS727A+2 LBL17 WL150 PO #813866. AND VERIFIED LOCATED; DRILLED; AND DEBURRED NEW INTERCOSTAL AT BS 727A+2 LBL17 WL150 IAW SRM 51-40-05 AND DWG #146A7500. OK TO INSTALL.;VERIFIED CORROSION ON INTERCOSTAL BS727+2 LBL17 WL150 IS OUT OF LIMITS AND REQUIRES REPLACEMENT DUE TO NO ALLOWABLE LIMITS IN THE SRM IAW SRM 51-10-02-0G.;EVALUATED CORROSION ON INTERCOSTAL BS727A+2 LBL17 WL150 FOUND TO BE OUT OF LIMITS DUE TO NO ALLOWABLE LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0;UPDATED MEASUREMENT TABLE;VERIFIED INSTALL OF NEW INTERCOSTAL IN ACB BS727A+2 LBL17 WL150 IAW SRM 51-40-02 AND DWG #146A7500.