As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-18 CHECK EXFOLIATION CORROSION WAS FOUND ON LT INBOARD MID FLAP OUTER GIMBLE INDEXING PLATE SUPPORT AT WBL 173.00. MAINTENANCE REMOVED AND REPLACED LT INBOARD MID FLAP OUTER GIMBLE INDEXING PLATE SUPPORT IAW B737-300 SOPM 20-50-01 FIG 1.