As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REMOVED THE NR 1 ENGINE TO CHANGE THE ENGINE MOUNTS. DURING THE OPPORTUNITY INSPECTION FOUND THERE WAS A CRACK ON THE FS 477 BULKHEAD. UPON FURTHER INSPECTION FOUND THERE WAS CHAFING ON THE WEB FROM BL 7R TO BL 7L. REMOVED THE DAMAGE, FABRICATED REPAIR WEB, LOCATED AND INSTALLED REPAIR.