What was found
PASSENGER CABIN FLOOR BEAM STRUCTURE HAS CORROSION IN AND AROUND NUT PLATE HOLE BS328 RBL 21.<[01] BLENDED CORROSION PER SRM 51-10-02. DAMAGE REMOVAL FOUND TO BE OUT OF LIMITS PER SRM 53-10-51-1A-1. DAMAGED PART P/N 141A5504-26 ORIGINAL THICKNESS = .125?; REMAINING THICKNESS AFTER INITIAL BLEND = .110?. CORROSION STILL REMAINING AROUND EDGE OF HOLE.;[02] VERIFIED DAMAGE IS OUT OF LIMITS .BLENDED CORROSION PER SRM 51-10-02. DAMAGE REMOVAL FOUND TO BE OUT OF LIMITS PER SRM 53-10-51-1A-1. DAMAGED PART P/N 141A5504-26 ORIGINAL THICKNESS = .125?; REMAINING THICKNESS AFTER INITIAL BLEND = .110?. CORROSION STILL REMAINING AROUND EDGE OF HOLE.;[03] ACCOMPLISHED ULTRA SOUND THICKNESS OF BLENDED AREA PER NDT PART 4 51-00-00 PROC. 3;[04] CORRECTION TO NDT REF. ACCOMPLISHED ULTRA SOUND THICKNESS OF BLENDED AREA PER NDT PART 4 51-00-00 PROC. 2;[05] UPDATED PARTS AND MEASUREMENTS INFORMATION.;[06] FLOORBEAM REPAIRED PER EA 23-153-00902.;[07] C/W INSPECTION.;[08] C/W INSPECTION.