What was found
DURING ROUTINE SCHEDULED C-5 MAINTENANCE CHECK, FOUND CORROSION ON THRESHOLD SUPPORT BEAM FR 68, Y 1800, LEFT Z -540 'MARKED'. BLENDED CORROSION 2 INCH BY 1 INCH BY .035 INCH ORIGINAL THICKNESS OF .071 FOUND OUT OF LIMITS PER MM 53-00-14. FABRICATED REPAIR AND INSTALLED PER SRM 53-00-14. (M)