As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAJOR REPAIR, COMPOSITE APU COMPARTMENT: APU COMPARTMENT INNER SKIN INCLUDING OUTER SKIN HAS DELAMINATION BETWEEN BS 1918 & 1941 17 INCHES ABOVE THE LWR FRAME APPROX. 8"X10" AREA. VERIFIED REPAIR IS A CATEGORY A REPAIR, NO FUTHER ACTION REQUIRED.