What was found
DURING ACCOMPLISHMENT OF C CHECK MX, AAR AIRCRAFT SERVICES, IND CORROSION WAS FOUND COMMON TO THE FORWARD SIDE OF THE AFT FRAME AT THE NR 3 CARGO DOORWAY AT STA 1142.7 BETWEEN STRINGERS 25R AND 27R (RBL 26). THE DAMAGE WAS BLENDED TO A 20:1 RATIO AND VERIFIED TO BE CRACK FREE. THE DEEPEST NOTED DAMAGE WAS .026" (32% MAT'L LOSS). THERE ARE NO SRM REPAIRS FOR THIS FRAME, DATA WAS SUBMITTED TO BOEING FOR REPAIR, FRAMES ARE SUBJECT OF REFERENCE INSPECTIONS BUT THIS REPAIR IS NOT A DEVIATION TO THIS AD. REPAIR ACCOMPLISHED ON EA 7-5310-106952.