As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: CORRODED AREA FOUND ON LOWER SILL LOCATED AT STR 23L. LENGTH = 1.234 INCHES WIDTH = 0.817 INCHES DEPTH = 0.004 INCHES CORRODED SHIM. REPLACED LOWER SILL REPAIR FILLER ON EXISTING REPAIR LOCATION ON FR68 AT LEVEL OF STR 23L IN PASSENGER CABIN AT AFT GALLEY AREA PER SRM 53-41-14-300-001.