What was found
ELONGATED FASTENER HOLE AND TOOLING DAMAGE LH AFT FUSELAGE SKIN AT FS559.00 + 64 Ï¿½ FS559.00 + 80 AND S17L Ï¿½ S18L. ***AIRCRAFT REMOVED FROM SERVICE*** PERFORMED A REPAIR AT LH AFT FUSELAGE SKIN AT FS559.00 + 64Ï¿½ FS559.00 + 80 AND S17L Ï¿½ S18L. ELONGATED FASTENER HOLE MEASURES L = 0.392 X W = 0.2095Ï¿½ AND TOOL MARK MEASURES L = 1.090Ï¿½ X W = 0.300Ï¿½ X D = 0.008Ï¿½. CUTOUT DAMAGED SECTION OF SKIN, MEASURING 1.200Ï¿½ IN DIAMETER. CUT OUT SECTION OF STRINGER 18L MEASURES 13.50Ï¿½ IN LENGTH. FABRICATED DOUBLER AND FILLER. DOUBLER DIMENSION L = 8.700Ï¿½ X W = 6.650Ï¿½ AND FILLER DIMENSION IS 1.150Ï¿½ DIAMETER. CUTAWAY DAMAGED SECTION OF SKIN AND STRINGER. SMOOTHED AND BLEND ALL REWORKED AREAS, ADDED FILLER AND INSTALLED A REPAIR DOUBLER. PERFORMED HFEC WITH NO INDICATIONS. RESTORED ALL SURFACE FINISHES. ALL WORK WITHIN LIMITS AND PERFORMED IAW ASAP EA # AWAC-CRJ253-01651 REV IR DATED 7/14/2021.