What was found
SEAT TRACK BETWEEN FRAME 55 AND 58 AT -Y450 IS CORRODED AT LOCATIONS: FR54+19", FR56+6", FR57+17". CORROSION REMOVED BY GRINDING AS PER SRM 51-74-00 REV 97. DAMAGE DIMENSIONS: FR54 + 19? INNER VERT UNABLE TO COMPLETELY REMOVE AND MEASURE L=1.000" W=0.200" D= 0.021". FR56 + 6? L=0.750" W=0.200" D= 0.040". FR57 + 17? L=1.500" W=0.500" D=0.036". DAMAGE ASSESSED AS OUTSIDE OF SRM 53-00-15 REV 97 LIMITS. RII CARRIED OUT AS PER GMM VOL1 CHAP 5 - CONSIDERED LEVEL 2 CORROSION, PART REPLACEMENT REQUIRED. SEAT TRACK REPLACED AS PER SRM 51-72-11 REV 97 AND DWG F53476200 ISSUE R. JOB COMPLETE.