What was found
MULTIPLE AREA OF CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT LBL 21 BS 727E+9-847 WL 155-162.<SRM 53-00-53-1A-2 FOUND TO BE APPLICABLE REMOVED MULTIPLE AREA OF CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT LBL 21 BS 727E+9-847 WL 155-162. DEEPEST BLEND AT BS 767 +10 L= 2.25' W=1.1' D=0.020'. REMAINING THICKNESS 0.020'. ORIGINAL THICKNESS 0.040'. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2. REPAIR BY REPLACEMENT REMOVED MULTIPLE AREA OF CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT LBL 21 BS 727E+9-847 WL 155-162. DEEPEST BLEND AT BS 767 +10 L= 2.25' W=1.1' D=0.020'. REMAINING THICKNESS 0.020'. ORIGINAL THICKNESS 0.040'.FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2.FABRICATED NEW FLOOR TO SIDEWALL SUPPORT SPLICE AT BS 727E-BS747 IAW SRM 53-00-53-2R-6. LOT#1515191-1 FABRICATED NEW ACB LH FLOOR TO SIDEWALL SUPPORT FROM BS 727- BS 847 IAW SRM 51-40-05-0G-0; DWG 146A7502 AND DWG 146A7500. FABRICATED NEW FLOOR TO SIDEWALL SUPPORT SPLICE AT BS 727E-BS747 IAW SRM 53-00-53-2R-6. MATERIAL USED BAC1496-377 7075-T62 CLAD FORMED CHANNEL LOT#1515191-1<REQUEST OK TO TREAT AND PRIME TREATED; PRIMED AND INSTALLED NUTPLATES ON ACB FLOOR TO SIDEWALL SUPPORT FROM BS 727- BS 847 IAW SRM 51-40-10-2R-0 AND DWG 146A7502. INSTALLED SPLICE AT BS 727E- BS 747 IAW SRM 53-00-53-2R-6;