As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON SEAT TRACK/FLOOR BEAM AT RBL 11.33 STA. 1820.(<P>REPLACED 2 EACH SECTIONS OF SEAT TRACKS FROM PREVIOUS REPAIR STA. 1610-1766.5 TO FACTORY SPLICE AND 2ND SECTON FROM STA. 1766.5 TO STA. 1910 TO PREVIOUS REPAIR SPLICE RBL 11.33 PER B747-400F SRM 53-00-52-2R-12 REP 12 REV 102. REF > HM627-20061 FOR REPLACEMENT. NO FURTHER DEFECTS NOTED</P>)