What was found
DURING ROUTINE C-CHECK INSPECTION, LEFT CUSP EXTRUSION UPPER SURFACE FRAME NON STANDARD REPAIR, STA 1560.000 L-20L. PERFORMED MAJOR REPAIR. REMOVED NON STANDARD REPAIR. REMOVED DAMAGED AREA, FABRICATED NEW FRAME SEGMENT P/N 52645791. FABRICATED (02 EA) ANGLES. PERFORMED HEAT TREATMENT TO NEW ANGLES IAW DC-8 SRM 51-1-1 PAGES 1, 13, 17 DPS 7.00.1 REV -BK-. CLEANED, TREATED AND PRIMED AREA AND REPAIR PARTS IAW DC-8 SRM 51-1-8B. APPLIED SEALANT TO FAYING SURFACES IAW DC8 SRM 51-1-11. INSTALLED REPAIR PARTS IAW DC8 SRM 53-2-0 FIG 2 (SHEET 4, 6) DC8 SRM 53-2-0 FIG 2 (SHEET 5).