As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON REMOVAL OF APU INTAKE DUCT FOUND ANGLE CORRODED APPROX STA 1787 TO 1800 RBL6. FOUND ANGLE AT APU INTAKE DUCT TO BE 100% MATERIAL LOSS OUT OF LIMITS IAW SRM 53-80-15. REMOVED, FABRICATED AND INSTALLED NEW ANGLE IAW SRM 51-40-02 AND DWG 148N3152 REV -.