What was found
CORROSION AT TWO LOCATIONS ON FLOOR SILL LH SIDE AT FS353.00-FS359.00 AND LBL41. ***AIRCRAFT REMOVED FROM SERVICE*** BLENDED CORROSION AT TWO LOCATIONS ON FLOOR SILL LH SIDE AT FS353.00-FS359.00 AND LBL41. P/N 601R31148. CORROSION DIMENSIONS P1 - L = 1.33Ï¿½ X W = 1.22Ï¿½ X D = 0.007Ï¿½. REMAINING THICKNESS 0.056Ï¿½. P2 Ï¿½ L = 1.330Ï¿½ X W = 1.200Ï¿½ X D = 0.011Ï¿½. REMAINING THICKNESS .052Ï¿½.FLOOR SILL ORIGINAL THICKNESS 0.063Ï¿½. PERFORMED HFEC WITH NO INDICATIONS. RESTORED PROTECTIVE FINISH. ALL WORK WITHIN LIMITS WAS PERFORMED IAW ASAP EA # AWAC-CRJ253-01673 REV A DATED 9/1/2021.