What was found
AFT CARGO HAS SEVERAL SPOTS OF CORROSION ON CIRCUMFERENTIAL FRAME AT STATION 917, CORROSION EXTENDS UNDER FINGERS OF ATTACH ANGLE. CUT OUT CORRODED AREA BETWEEN STRINGER 27 AND 28-29 BEYOND LIMITS .020. ROLLED 2 FRAME REPAIR SPLICE IAW DC-9 SRM 53-05 PAGE 4G. DIMENSIONS 20 INCH BY 3 INCH 15 INCH BY 3 INCH, 6.8 INCH BY 1.90 INCH 7075-0-.063. HEATED TO 7075 T6 IAW DC-9 SRM 51-10-2A AND 7075-0-.066 TREATED AND PRIMED IAW DC-9 SRM 51-10-3 PAGE 18 AND 46. INSTALLED PARTS AND FASTENERS IAW DC-9 SRM 51-30-3, 51-30-5. (M)