What was found
DURING ROUTINE C CHECK INSPECTION, NOSE SECTION FUSELAGE FREON EXHAUST SYSTEM FORWARD UPPER CORNER CRACKED AT STATION FS 40.000 L27L. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR.REMOVED DAMAGED AREA.FABRICATED EXTERNAL REPAIR DOUBLER , AND FILLER. CLEANED, TREATED AND PRIMED AREA AND REPAIR PARTS. INSTALLED REPAIR PARTS AND NEW FASTNERS IAW SRM 51-1-21, 51-3-1, DC8 SRM 53-2-0 FIGURE 13 SHEET 1, SRM 53-2-0 FIGURE 13 SHEET 5 TR NUMBER 53-169 DATED 09-20-03, SRM 53-3-3 FIGURE 1 ITEM "C", DC8 SRM 51-1-20D, AND DC8 SRM 51-1-8B.