What was found
AFT RT LAV FLOORBEAM AT FS 996 CORRODED FROM FUSELAGE TO LAV ENTRANCE. REMOVED RT CABLE RUN AND RT O/B PULLEY TOWER. CUT OUT CORRODED SECTION, TREATED AREA, FABRICATED AND INSTALLED FLOORBEAM SPLICE, FLOORBEAM WEB, ATTACH ANGLE, ANGLES AND ATTACH ANGLE BRACKET IAW DC9 SRM 53-05, FIG 108. REINSTALLED CABLE RUN AND PULLEY BRACKET. RIG AND OPS CHECKED GOOD IAW DC9 MM 27-20-0.