As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH OB FLAP HINGE ARM AT W.S. 178.00 FOUND TO HAVE CORROSION INSIDE BORE OF AFT FASTENER HOLE CORRECTIVE ACTION: REPLACED UNSERVICEABLE LH FLAP HINGE ARM AT WS178.00 (PN:601R14551-3 SN:UNK) WITH NEW SERVICEABLE FLAP HINGE ARM (PN:601R14551-3 SN:25-00775).