What was found
AFT CARGO DOOR CUTOUT, AFT SIDE, SKIN BEARSTRAP DOUBLER IS CORRODED. ACFT GROUNDED. REMOVED CORROSION MATERIAL, REMOVED .030" FOUND TO BE OUT LIMITS IAW SRM 53-00-01. REMOVED DOOR THRESHOLD WEB, AFT EDGE COVER STRAP, CORNER EDGE COVER STRAP AND LOWER SILL OTBD CHORD TO FOM REPAIR IAW SRM 51-40-02. REPAIRED IAW SRM 53-00-01-2R-32. REINSTALLED DOOR THRESHOLD WEB AFT EDGE STRAP, CORNER EDGE STRAP AND LOWER SILL OTBD CHORD IAW SRM 51-40-02. THIS IS A CATEGORY B REPAIR REINSPECT IAW SB737-53A1228, INSPECTION THRESHOLD 50,000 FLIGHT CYCLES, REPEAT INSPECTION 8,000 FLIGHT CYCLES, REMOVED DOT B626 .