What was found
DURING HEAVY CHECK, WAS REPORTED THAT FLOORBEAMS BETWEEN FRAME 13-14. RIGHT CENTER FLOOR STRUCTURE IS CORRODED. MAINTENANCE R & R RT FF SEAT TRACK IAW SRM 51-40-02, CONTINUATION C1-C2 FOR WORK DETAILS. PN 170-03263-001, TRACK RT. ACFT REMAINS UNTIL HEAVY CHECK IS COMPLETED.