What was found
CORROSION CABIN RH FLOOR LEVEL SEATRACK FR87 Y+12. REMOVED RH SEAT TRACK (BEAM CENTER FUSELAGE III) FRAME 86 TO FR 90 AND Y +12 IAW SRM 51-40-08. LOCATED AND DRILLED NEW BEAM PN 170-65669-004 IAW SRM 51-40-02, 51-40-30. INSTALLED NEW BEAM PN 170-65669-004 AT FRAME 86 TO FRAME 90 AND Y +12 IAW SRM 51-40-02.3.