What was found
LT PRIMARY HEAT EXCHANGER; AFT LWR CORNER MODIFICATION DOUBLER WITH 0.75 CRACK IN IT, STA 12.000 L-27L (MAJOR REPAIR). PERFORMED MAJOR REPAIR IAW FAA FORM 8110-3 DATED 04-16-05, EO AST050401 DATED 04-12-05. REMOVED ALL FASTENERS WITHIN THE REPAIR AREA. PERFORMED STOP HOLE AT END OF CRACK IAW EO AST050401. NDT INSPECTED AREA IAW NDT SPM PART 06-10-01-001. FABRICATED REPAIR DOUBLER (AL2024T3 0.050) AND REPAIR TRIPLER (AL2024T3 0.050) IAW EO AST050401. CLEANED, TREATED AND PRIMED REPAIR PARTS IAW SRM 51-1-8B. APPLIED SEALANT TO FAYING SURFACES IAW SRM 51-1-11 PG 9. INSTALLED REPAIR PARTS IAW EO AST 050401, SRM 51-3-0 PG 1, SRM 51-1-20D PG 9. TORQUED NUTS IAW SRM 51-3-1.