As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HORIZONTAL JACKSCREW COMPARTMENT RIGHT SIDE STA 1825 STR 3R TO STR 6R AT AFT END OF APU INLET DOOR HOUSING; SKIN INNER AND MIDDLE STRAPS ARE CORRODED. REMOVED CORROSION AND FOUND TO BE OUT OF LIMITS IAW SRM. REPAIRED INNER AND MID STRAPS IAW SRM.