As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND WHERE TOP EDGE OF APU AIR INLET PLENUM ATTACHES TO FWD SIDE OF BULKHEAD STA 1088, MARKED. REMOVED AND REPLACED STIFF NEW AT BS 1088 AT PPU AIR INLET PLENUM ATTACH POINT, IAW B737-800 SRM 51-40-02-0G-0 AND BOEING DRAWING 148A0924 REV B.