What was found
CORROSION ON PASSENGER CABIN SEAT TRACK RBL45 BS727C+16; 766;787+10; 807; 827; 827+14; 847+11; 867+3 WL208.< OUT OF LIMITS PER SRM 53-00-52-1A-1. FIGURE 103; PG.11. SEAT TRACK TO BE REPLACED.;[02] VERIFIED CORRECTIVE ACTION 1<BR>VERIFIED MEASUREMENTS TABLE.;[03] REMOVED FASTENER FROM PASSENGER CABIN SEAT TRACK LOCATED AT B.S. 727B - B.S. 887; RBL 45 PER SRM 51-40-02-0G-0;[04] LOCATED AND DRILLED NEW SEAT TRACK FROM RBL 45 PART# ATSHFAB-100-316 LOT# 545484 PER B737-700 DWG 146A5300 REV B. OK TO INSTALL NEW SEAT TRACK.;[05] VERIFIED CORRECTION ACTION ITEM 4; OK TO INSTALL GIVEN.;[06] NEW PART MARKED PER ATS QCM 4.35.26.<BR>INSTALLED PASSENGER CABIN SEAT TRACK RBL45; FROM BS727B - BS887; WL208 IAW SRM 51-40-02-0G-0 AND BOEING DWG 146A5300.<BR>LOCATED AND DRILLED CABIN FLOOR BOARD HOLES COMMON TO SEAT TRACK RBL45 BS727B - BS887 PER SRM 51-40-05-0G-0.;[07] CERTIFIED CORRECTIVE ACTION 6;[08] VERIFIED CORRECTIVE ACTIONS STEP 6.