What was found
AFT CARGO BAY FR 55A - 59. DOOR SILL HAS SURFACE CORROSION. REMOVED CORROSION IAW SRM 51-74-00. NO ALLOWABLE DAMAGE LIMITS FOUND IN SRM. ACCOMPLISHED REPAIR IAW ER/A 515385-14, REV-ORIGINAL, SECTION I, PERMANENT REPAIR. IDENTIFIED REPAIR AS ENGINEERING APPROVED & PERMANENT IAW PS.900-5-1, NR 4.