What was found
AFT CARGO R/H AFT TRANSITION PANEL IS CORRODED. GROUNDED - YES. PERFORMED SURFACE BLEND REMOVED CORROSION, STA 727J+8 - 727K+12 FOUND TO BE OUT OF LIMITS REPAIRED SECTION, ALL OTHER AREAS FOUND TO BE WITHIN LIMITS RESTORED FINISH IAW B737-900 SRM 53-00-53-2R-5 SRM 53-00-53-1A-2W 4" O .040 R .039 L 9' D .001.