What was found
FWD PIT LT FLOOR SUPPORT Z ANGLE UPPER SURFACE CORRODED STA 500A TO 500I AT LBL24' AND W/L 157. REMOVED CORROSION FROM FWD PIT LT FLOOR SUPPORT Z ANGLE UPPER SURFACE STA 500A TO 500I LBL 24 W/L 157 AND VERIFIED WITH 10X MAGNIFYING GLASS, IAW SRM 51-10-02-0G-0. ORIGINAL THICKNESS .040', REMAINING THICKNESS .027', MATERIAL LOSS OF .013' 'OUT OF LIMITS', IAW SRM 53-00-53-1A-2. FABRICATED NEW Z ANGLE AND INSTALLED, IAW SRM 53-00-53-1A-2 BOEING DWG 143A7500 REV - AND SRM 51-40-02-0G-0 P/N 143A7501-231 A TAG A73404 AAR TOOL 36647 DATE 05-27-21.