As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ACCOMPLISHING DELAMINATION REPAIR ON R/H SIDE APU INSIDE WALL SKIN A NEW AREA OF DELAMINATION WAS FOUND DURING POST REPAIR TAP TEST ON THE OUTER SKIN ON THE AFT CORNER. REPAIRED NEW AREA OF DELAMINATION FOUND DURING TAP TEST OF OUTER SKIN IAW B757 SRM 51-70-10-2R & EA # F-5330-T0801330, TITLE: FUSELAGE-PLATES & SKINS-APU COMPARTMENT SKIN, DISBOND REPAIR. MAJOR REPAIR.