What was found
CORROSION ON CABIN FLOOR SILL LH AT FS424.00 TO FS424.00+4 AND LBL35-38. *****AIRCRAFT REMOVED FROM SERVICE********* BLENDED 4 AREAS OF CORROSION ON LH FLOOR SILL AT F424.00 TO FS424.00+4 AND LBL 35-38. P2-L=1.800IN X W=1.400IN X D=0.002 P3-L=0.700IN X W=0.500IN X D=0.002 P4-L=1.800IN X W=0.800IN X D=0.200 P5-L=1.600IN X W=0.800IN X D=0.200 ORIGINAL THICKNESS 00.80 REMAINING THICKNESS .078 MATERIAL LOSS .002. PERFORMED HFEC WITH NO INDICATIONS. RESTORED PROTECTIVE FINISH . ALL WORK WITHIN LIMITS WAS PERFORMED IAW ASAP EA# AWAC-CRJ 253-01986 REV A DATE 5/27/2023. WORK PERFORMED UNDER AERSALE WORK ORDER 003911 CARD NO.20164, TT: 38,125:30 TC: 36,944