As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 1C CHECK, AFT FUSELAGE EXTERIOR SKIN HAS SEVERAL AREA'S OF CORROSION AROUND APU RAM AIR DOOR.(I/B OF 313AL). // SUMMARY OF WORK COMPLETED. CORROSION LEVEL 2. ACCOMPLISH ALL STEPS ON PRI 585237-14 REV ORIG. REPAIRED PER ERA 585237-14 REV. ORIGINAL.