As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION AROUND EXTERIOR SIDE OF VACUUM BLOWER FOR LAV TANK EXHAUST VENT -M-. SUMMARY SEE NRC 001-0247:2550-2003/001 00405: REPAIRED AREA AROUND VENT PER ER/A 597013-14 PRI REV 0 THROUGH REV 3 AND ER/A 597013-14 REV ORIGINAL. (LP #2118994)