As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - "C" - DURING C-17 CHECK 2 CRACKS WERE FOUND ON WEB BELOW SEAT TRACKS AT BS 709-710, LBL 24. MAINTENANCE REMOVED DAMAGED AREA OF WEB, FABRICATED REINFORCEMENT DOUBLER AND NEW WEB AND INSTALLED REPAIRS IAW AWA ER 03-5715-02011-ES3.