What was found
DURING STRUCTURAL INSPECTION AT THE MAINTENANCE FACILITY, THE AFT CARGO DOOR INNER SKIN ASSEMBLY AT BS 800 WAS FOUND TO HAVE CORROSION. THE CORRODED AREA WAS TRIMMED OUT, WITH A TRIM OUT AREA OF 2.4” X 2.0”. THE AFT CARGO DOOR INNER SKIN (P/N: 65C36232) IS MADE FROM .125” THICK 7075-T62 ALUMINUM, CHEM-MILLED TO A THICKNESS OF .045 INCHES. THE TRIM OUT REMOVED 1.15” OF 0.125” THICK SKIN AND 0.85” OF 0.90” SKIN. JOB SENT TO ENGINEERING SOLUTION FOR REPAIR APPROVAL UNDER EA72-2019-002 APPROVED UNDER 8110-3 PROVIDED.