What was found
SEAT TRACK BETWEEN FRAME 53.2 AND 53.4/53.5 AT -Y450 IS CORRODED AT LOCATIONS: FR 53.2 - 240MM AFT & FR 53.4. CORROSION REMOVED BY GRINDING AS PER SRM 51-74-00 REV 97. DAMAGE DIMENSIONS: FR53.2+240MM INNER VERT L=0.300" W=0.200" DEPTH= UNABLE TO FULLY REMOVE CORROSION AND MEASURE DEPTH, FR53.4 INNER VERT L=0.300" W=0.200" DEPTH=UNABLE TO FULLY REMOVE CORROSION AND MEASURE DEPTH. ASSESSED AS OUTSIDE OF SRM 53-31-15 REV 97 LIMITS. RII CARRIED OUT AS PER GMM VOL1 CHAP5 - CONSIDERED LEVEL 2 CORROSION, PART REPLACEMENT REQUIRED. SEAT TRACK REPLACED AS PER SRM 51-72-11 REV 97 AND DRAWING F53326973 ISSUE A. JOB COMPLETE.