What was found
NR 4 ENG NACELLE INLET COWL LT EXTERNAL SKIN CRACKED 1" STA YN 132.000 AT 9 O'CLOCK POS. (MAJOR REPAIR). PERFORMED MAJOR REPAIR IAW FAA FORM 8110-3 DATED 10-16-07, EVA B271-00015 REV IR DATED 10-12-07. REMOVED FASTENERS IAW SRM 51-1-21, SRM 51-1-21A, CUT OUT DAMAGED SECTION IAW ASTAR DWG ESD87100013-001-D REV IR DATED 10-16-07. PERFORMED NDT INSPECTION IAW DC8 NDT SPM PART 06-10-01-001. NO CRACK NOR CORROSION FOUND AT CUT OUT AREA. ENCLOSED SMN FORM 242-2. FABRICATED FILLER (AL2024"0" 0.080") AND DOUBLER (AL2024"0" 0.090") IAW ASTAR DWG NR ES-D87100013-001-D. HEAT TREATED FILLER AND DOUBLER FROM 2024"0" TO 2024T62 IAW SRM 51-1-1 PG 1-13-17. CLEANED, TREATED AND PRIMED AREA AND REPAIR PARTS IAW SRM 51-1-8B. INSTALLED REPAIR PARTS IAW SRM 51-1-8B. INSTALLED REPAIR PARTS IAW ASTAR DWG ES-D87100013-001-D, SRM 51-1-21, SRM 51-1-21A.