What was found
INSIDE AIRCRAFT CABIN RT SIDE FROM BS 529 - 513 (APPROX) PRESSURE FLOOR SILL SHOW SIGNS OF CORROSION IN MULTIPLE AREAS. REMOVED CORROSION INSIDE AIRCRAFT CABIN RT SIDE FROM BS 529 - 513 (APPROX) PRESSURE FLOOR SILL IAW SRM 51-21-06. MEASURED AREA ON RT PRESSURE FLOOR SILL ORIGINAL THICKNESS WAS 0.080" & 0.055" REMAINING 0.075" & 0.047" AREA FOUND TO BE BEYOND ALLOWABLE LIMITS. REPAIRED RT PRESSURE FLOOR SILL FROM BS 529 - 513 IAW REO 601R-53-41-3396, REV--. CIC WILL BE APPLIED ON WORK CARD 2530/ CP 31823245. AIRCRAFT WEIGHT CHANGE NEGLIGIBLE. THRESHOLD INSPECTION OF BLEND DUE BEFORE OR AT 46177 FLIGHT CYCLES. THRESHOLD INSPECTION OF DOUBLER DUE BEFORE OR AT 81617 FLIGHT CYCLES.