As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING BASIC 2 CHECK, CRACKS WERE FOUND IN A CUTOUT IN PANEL 351BZ OF THE APU FIREWALL. EAMS REQUESTED A PERMANENT REPAIR OF THE CRACKED AREAS. THE CRACKS WERE ROUTED OUT AND THEN NDI INSPECTED FOR FURTHER CRACKS, NONE WERE OBSERVED AND THE REPAIR WAS CONSIDERED PERMANENT.