What was found
CORROSION - FWD WET AREA - LEFT TRACK AT FRAME 17 THRU 20 (MAJOR REPAIR) (LEVEL 2 CORROSION) BLENDED CORRODED AREA ON FWD WET AREA LEFT TRACK AT FRAME 17 THRU 20 -17 PER EMB-175 SRM 51-10-03. DEEPEST BLENDED AREA MEASURES (L=1?,W=.5?,.039? ). ORIGINAL MATERIAL .050? REMAINING MATERIAL IS .011? AND IS FOUND TO BE OUT OF ALLOWABLE LIMITS PER EMB-175 SRM 53-10-10/AD01. REMOVED LH FWD SEAT TRACK FROM FRAME 12- FRAME 20 IAW EMBRAER 175 SRM 51-40-08. DRILLED AND COUNTERSANK NEW LH FWD SEAT TRACK PN 170-03264-001 IAW EMBRAER 175 SRM 51-40-02, 51-40-04. TREATED AND PRIMED FASTENER HOLES IAW EMBRAER 172 SRM 51-23-04, 51-23-05, ETN-EJ-51-008, ETN-EJ-51-009. RESTORED FINISH PER EMB 175 SRM 51-23-06. APPLIED CIC TO AREA PER CPM 51-25-00-910-001-A. INSTALLED STAINLESS STRIPS PER EMBRAER 175 SRM 51-21-01 ETN-EJ-53-015. REMOVED AND REPLACED L/H SEAT TRACK AT FR 12-20 REF EMB 175 SRM 51-40-08. LEVEL 2 CORROSION