What was found
INSIDE THE AIRCRAFT CABIN LEFT SIDE BETWEEN F.S. 439.00 TO F.S. 449.00 (APPROX) PRESSURE FLOOR SILL SHOWING SIGNS OF CORROSION IN MULTIPLE AREAS (AREAS MARKED WITH RED GREASE PENCIL) (C-CHECK RO 08/31/2026)REMOVED CORROSION FROM CABIN LEFT HAND SIDE PRESSURE FLOOR SILL AT F.S.439.00 TO F.S. 449.00 IAW CRJ200 SRM 51-21-06. MEASURED AREA ON F.S. 444.00 TO F.S 449.00 ORIGINAL IS 0.080" AND 0.055" REMAINING IS 0.076" AND 0.052"AREA FOUND TO BE WITHIN ALLOWABLE LIMITS. RESTORED SURFACE FINISH ON FLOOR SILL IAW MHI RJ REO 601R-53-41-3402 REV-- 2026-02-12 MEASURED AREA ON F.S. 439.00 TO F.S 444.00 FOUND TO BE BEYOND ALLOWABLE LIMITS AREA WAS REPAIRED WITH MHIRJ REO 601R-53-41-3392 REV-- 2026-03-16. CIC WILL BE APPLIED ON WORK CARD 2530/ CP 31823245.