What was found
A 0.250 CRACK IN LT PRIMARY HEAT EXCHANGER AFT LWR CORNER STA -12.000 L-27L (MAJOR REPAIR). PERFORMED MAJOR REPAIR IAW FAA FORM 8110-3 DATED 03-16-05 DRAWING X83-R04 REV IR DATED 03-01-05. REMOVED FASTENERS IAW SRM 51-1-21 PG 1. CUT OUT DAMAGED SECTION IAW DWG X83-R04. PERFORMED NDT INSP IAW DC8 NDT SPM 06-10-01-001. FABRICATED REPAIR DOUBLER (AL2024T3 0.050) REPAIR TRIPLER (AL2024T3 0.063) AND FILLER (2024T3 0.100) IAW DWG X83-R04. CLEANED, TREATED AND PRIMED AREA AND REPAIR PARTS IAW SRM 51-1-8B. INSTALLED REPAIR PARTS IAW DWG X83-R04, SRM 51-1-21 PG 1, SRM 51-1-20D PG 9, SRM 51-3-0 PG 1. TORQUED IAW SRM 51-3-1.