What was found
AFT CARGO L/H TRANSITION PANEL FROM 727C TO STA 787 HAS CORROSION (CIRCLED IN RED) GROUNDED - YES. REMOVED CORROSION FROM L/H TRANSITION PANEL STA 727 TO STA 847. FOUND TO BE OUT OF LIMITS WITH 100% MATERIAL LOSS, REMOVED TRANSITION PANEL STA 727-847, MATERIAL ID FOR NEW TRANSITION PANEL IS BAC1496-377 7075-T62 PO 1052179.1FABRICATED TRANSITION PANEL, APPLIED ALODINE AND PRIMER , INSTALLED TRANSITION PANEL IAW B737-900 SRM 53-00-53-1A-2, SRM 53-00-53-2B-5.