As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:C3 CORROSION FOUND ON SUPPORT STRUCTURE COMMON TO APU INLET PLENUM, LOWER AFT CORNER STA 1822 STR 6R AND LOWER FWD CORNER STA 1789 STR 6R. CORROSION ON OUTER STRAP AT BS 1825 FROM STR 9R TO STR 2L CORROSION ON APU CUTOUT FWD STRAP AND UPPER & LOWER SUPPORT ANGLES FOUND TO BE OUT OF LIMITS. REPLACED THE FWD STRAP, UPPER AND LOWER SUPPORT ANGLES.