As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU AIR INLET ASSY AND INLET OPENING SECURING INTERNAL ATTACH FLANG HAS SEVERAL AREAS OF CORROSION AS VIEWED THRU ACCESS 311AL ABOVE THE HORIZTONAL STAB CENTER SECTION. BLENDED THE CORROSION IAW SRM 53-80-15, AND FOUND TO BE OUT OF LIMITS IAW SRM 53-80-15. REMOVED AND REPLACED THE STRAP AND ANGLES IAW SRM 53-80 -15, REPAIR 2.