As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ACCOMPLISHMENT OF THE CENTER WING BOX REAR SPAR WEB MODIFICATION AS MANDATED BY AD97-25-15, EIGHTY THREE HOLES WERE MISDRILLED COMMON TO THE REAR SPAR CENTER WEB ACCESS PLATE AND THE REAR SPAR WEB. OVERSIZED FASTENERS OF THE SAME TYPE WERE INSTALLED. THIS REPAIR WAS APPROVED BY BOEING DER WITH AN 8110-3 AS AN ALTERNATE MEAN OF COMPLIANCE TO AD97-25-15.