What was found
INSIDE THE AIRCRAFT CABIN RT SIDE BS 550 (APPROX) PRESSURE FLOOR SILL SHOW SIGNS OF CORROSION. REMOVED CORROSION INSIDE THE AIRCRAFT CABIN RIGHT SIDE BS 550 (APPROX) PRESSURE FLOOR SILL IAW SRM 51-21-06. MEASURED AREA ORIGINAL THICKNESS IS 0.080" AND MINIMUM REMAINING 0.072" AREA FOUND TO BE ALLOWABLE LIMITS IAW REO 601R-53-41-3396, REV--. RESTORED SURFACE FINISH ON FLOOR SILL IAW REO 601R-53-41-3396 REV--, AND SRM 51-21-16. CIC WILL APPLIED ON WORK CARD 2530/ CP 31823245. AIRCRAFT WEIGHT CHANGE NEGLIGIBLETHRESHOLD INSPECTION (4560 FLIGHT CYCLES) DUE BEFORE OR AT 46177 FLIGHT CYCLES.