What was found
CORROSION ON UPPER CHORD OF CENTER WING REAR SPAR AT PRESSURE BULKHEAD F.S. 855, LEFT BUTT LINE 11 - 21. REMOVED AND INSTALLED BLOWOUT PANEL 3 EA. VERTICAL STIFFENERS, WEB ATTACH ANGLE, DOUBLER, FITTING AND SHEAR WEB ATTACH ANGLE IAW DC-8 SRM 51-30-0 AND 51-1-21. INSTALLED -3, -5, -11 FILLER, -9 AND -7 STRAP IAW DC-8 SRM 53-2-5. INSTALLED SPAR CAP ATTACH ANGLE P/N 3646326-1, 4648716-1 ANGLE WEB AT LEFT BUTT LINE 22 AND 5644011-1 ANGLE IAW DC-8 SRM 53-2-5 AND 51-1-20D.