What was found
WHILE THE AIRCRAFT WAS IN FOR HEAVY CHECK LOWER LEFT WING HAS 1/32 INCH CRACK AFT EDGE INBOARD OF RIB 25. LOWER SKIN HAS 2MM GOUGE DEPTH, MEASURING 1.0 X .75 INCH AND DENTED SKIN AFT OF PANEL 541DB 3 TO 4 MM DEEP MEASURING 4.0 X 1.5 INCH. CUTOUT DAMAGED AREA, FABRICATED FILLER AND DOUBLER IAW ETD 2011-170/00300. DRILLED AND INSTALLED REPAIR PARTS IAW EMB170SRM51-40-02 AND 51-43-02 AND ETD 2011-170/00300. CLASSIFIED MAJOR REPAIR. AIRCRAFT HAS BEEN RELEASED FROM HEAVY CHECK IN CMH. SDR SUBMISSION LATE DUE TO FAA SDR WEBSITE BEING INOP.