What was found
INSPECTION TYPE: C1, SHEARED RIVET HEAD, BULGE & CORRODED SHEAR WEB ABOVE & BELOW L21R CUSP MAIN CABIN COURIER AREA FS 25. REMOVED FRAME FITTING AND FLOOR SUPPORTS TO FOM, REMOVED CUSP ANGLES AND FABRICATED NEW ANGLE IAW DC8 SRM 53-3-3 AND DAC DWG 5888479. ALODINED AND PRIMED IAW DC8 SRM 51-1-8. INSTALLED NEW CUSP ANGLES, FRAME FITTING AND FLOOR SUPPORTS IAW DC8 SRM 51-1-20D, 51-3-0.