As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH INBOARD AFT FLAP HAS INTERGRANULAR CORROSION AT TRAILING EDGE APPROX. MID WAY DAMAGE IS LOCATED AT TRAILING EDGE 30.5' FROM OUTBOARD EDGE. DAMAGE IS 3.875 ' X 1.625'<[01] REMOVED AND REPLACED LH IB AFT FLAP; OPS CHECK GOOD REF. AMM 27-51-12.