As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH WING #4 LEADING EDGE SLAT WELL LOWER SUPPORT ASSEMBLY VERTICAL FLANGE IS CORRODED AT TAI TELESCOPING DUCT BEARING TAB FSS 308. / REPAIRED LH WING #4 LEADING CAGE SLAT WALL LOWER SUPPORT ASSEMBLY VERTICAL FLANGE (FSS 308) IAW EA # 190652(AAR) REV IR AND SWA EA 1-757-16492 REV IR NO FOURTHER ACTION REQUIRED.