As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-17 CHECK A 1 INCH CRACK WAS FOUND ON LT WING RIB AT WBL 135.5. MAINTENANCE CUT OUT DAMAGED AREA OF LT WING RIB AT WBL 135.5; FABRICATED A NEW SECTION OF AND 2 EACH REPAIR ANGLES; INSTALLED REPAIR PARTS IAW ER 03-5723-03149-TB1.