As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU COMPARTMENT, FIREWALL JUST ABOVE RT DOOR LATCH BRACKET GOUGE IN FIREWALL. GOUGE ON FIREWALL APU WEB FOUND OUT OF LIMITS ORIG. MAT. .016" LOSS .012" REMAINING .004" AS PER SRM 53-80-08 DET. IX FIG 101 P. 109. FABRICATED DOUBLER AS PER SRM 53-80-08 TABLE I FIG 201 P. 201, REPAIR 2. INSTALLED DOUBLER APU FIREWALL AS PER SRM 51-40-02. CATEGORY A REPAIR. MAJOR REPAIR.