As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU COMPARTMENT PANEL HAS CORROSION. DRILLED OFF PANEL. FABBED REPAIR DOUBLERS AND FILLER. REMOVED DAMAGE. INSTALLED NEW CORE AND REPAIR PARTS. PRIMED AND PAINTED. REMOVED 9"X2" SECTION OF INNER SKIN AND CORE. FABRICATED INTERNAL DOUBLER FROM 025" 2024T3 & NEW SECTION OF CORE. PERF BOEGEL PROC & PRIMED REF SRM 51-70-10-2R. INSTALLED & STARTED CORE REF EO B757-5330-78830B SRM 51-71-10-2R.