As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-17 CHECK EXFOLIATION CORROSION WAS FOUND ON BS 847 FRAME LOWER STIFFENER STRAP RBL 19-25, WL 160. MAINTENANCE BLENDED OUT CORROSION AND FOUND MATERIAL LOSS TO BE OUT OF LIMITS; REMOVED DAMAGED -12 INNER FRAME CHORD STRAP; FABRICATED A -1 REPAIR ANGLE, -2 TAPERED FILLER, AND 1 EACH FRAME & STRINGER CLIP; INSTALLED REPAIR PARTS IAW AWA ER 03-5300-03134-ES1.