What was found
EXTERIOR FUSELAGE NOSE SECTION ESTRUCTURAL MODIFICATION DOUBLER (ACS) CRACKED 0.250 AT AFT UPPER CORNER OF PRIMARY HEAT EXCHANGER STA -12.000 L-24L (MAJOR REPAIR). CORR.: PERFORMED MAJOR REPAIR IAW FAA FORM 8110-3 DATED 07-11-05, DWG Z20-R02 REV. IR DATED 06-24-05. REMOVED FASTENERS IAW SRM 51-1-21 PG. 1, SRM 51-1-20D PG. 21. CUT OUT DAMAGED SECTION IAW DWG Z20-R02. PERFORMED NDT INSP IAW DC8 NDT SPM PART 06-10-01-001. FABRICATED REPAIR DOUBLER, TRIPLER, AND FILLER (AL2024T3 0.100) IAW DWG Z20-R02- CLEANED, TREATED AND PRIMED AREA AND REPAIR PARTS IAW SRM 51-1-8B. APPLIED PRC SEALANT TO FAYING SURFACES IAW SRM 51-1-11 PG. 9. INSTALLED REPAIR PARTS IAW DWG Z20-R02, SRM 51-1-21 PG.1, SRM 51-1-20D PG.9. TORQUED IA