As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VERTICAL FIN LEFT AND RIGHT O/B PIVOT FITTING PLATES CORRODED. FOUND DURING REMOVAL OF HORIZONTAL FOR UPPER SKIN REPLACEMENT DUE TO TIME LIMITED REPAIR OF CRACK. REPLACED BOTH OUTBOARD PLATE SETS PER ERA 475781-14. THESE PLATES WERE SUBJECT TO SB MD80-55-054, AD99-07-14 EO 09-073278-12AD. THE TERMINATING ACTION WAS COMPLIED WITH IN JULY OF 2004, HOWEVER THE CURRENT DAMAGE MATCHES THAT SOUGHT BY THE ORIGINAL MANDATED INSPECTION.