What was found
CABIN AT STA 1521 TO STA 5-11 X=-75.5 SEAT TRACK UPPER FLANGE FOUND CORRODED. CORROSION REMOVED IAW SRM 51-21-01, REV 47, ORIGINAL THICKNESS = 0.085", REMAINED MATERIAL = 0.040" MATERIAL REMOVED = 0.045" FOUND EXCEEDED LIMIT IAW SRM 53-00-52, FIG 101, REV 47. SEAT TRACK SECTION REMOVED IAW SRM 51-31-01, REV 47. NEW REPAIR SEAT TRACK SECTION FABRICATED IAW SRM 53-00-52, FIG 201, REV 47. NEW REPAIR SEAT TRACK SECTION AND SPLICE INSTALLED IAW SRM 53-00-52, FIG 201, REV 47. REPAIR CLASSIFIED AS MAJOR IAW GMM 6-2-100, REV 112.