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 A 2.5 INCH CRACK WAS FOUND IN STRINGER 16 RT AT BS 500C+5. MAINTENANCE TRIMMED OUT DAMAGE ON STRINGER 16 RT AT BS 500C+5 AND PERFORMED A HFEC INSPECTION TO VERIFY NO CRACKS EXIST; FABRICATED A FILLER, REPAIR CHANNEL, AND A NEW REPLACEMENT STRINGER TIE CLIP; INSTALLED REPAIR PARTS IAW AWA ER 03-5331-04140-RA1.