As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPAIR FOR MIGRATED SHIM, INSPECTION OF LT WING INBD FLAP INBD FLAP TRACK REVEALED A MIGRATED LAMINATED SHIM. THE CONDITION IS TYPICAL OF THAT DOCUMENTED PER BAC S/B 727-57-0178 AND AD 90-07-05. THE SHIM WAS MIGRATED BEYOND THE ALLOWABLE LIMITS OF THE S/B AND WAS REPLACED PER THE S/B INSTRUCTIONS AND PER ER/A 384219-14AD.