What was found
AFT FUSELAGE SECTION L-17L CRACK 2.000 AT STA 1766.000 (MAJOR REPAIR). PERFORMED MAJOR REPAIR IAW SRM 53-1-0 PG 1, SRM 53-5-3 FIG 5. REMOVED CRACKED LONGERON IAW SRM 51-1-21 PG 1, SRM 51-1-20D PG 21, SRM 51-3-0 PG 1. FABRICATED NEW LONGERON (EXTRUSION 7075 P/N S1616757) IAW SRM 53-5-3 FIG 5. CLEANED, TREATED AND PRIMED AREA IAW SRM 51-1-8B. INSTALLED NEW LONGERON IAW SRM 51-1-21 PG 1, SRM 51-1-20D PG 9, SRM 51-3-0 PG 1, SRM 51-1-11 PG 9, SRM 51-3-2. TORQUED IAW SRM 51-3-1 PG 2A.