What was found
AFT CARGO BAY DOOR FLOOR SILL HAS MULTIPLE SPOTS OF CORROSION, MARKED, STA 808-827 RBL 26.5 WL 160. AFT CARGO BAY DOOR FLOOR SILL PLATE FOUND TO BE OUT OF LIMITS, IAW SRM 53-60-15-1A-1. REMOVED FLOOR SILL PLATE, IAW SRM 51-40-02-0G-0 AND BOEING DWG 146A13410. INSTALLED NEW SILL PLATE, IAW SRM 51-40-02-0G-0 AND BOEING DWG 146A8340 REV: A. NOTE: SILL PLATE WAS OUT OF LIMITS DUE TO PROXIMITY OF FASTENER HOLES.