What was found
DURING ROUTINE C CHECK INSPECTION, FOUND RIGHT FUSELAGE NOSE SECTION ACS MODIFICATION DOUBLER HEAT INTERCHARGER COMPARTMENT LOWER AFT JAMB CORNER DAMAGE AT STATION FS 12.000 LONGERON 27 RIGHT. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR. REMOVED DAMAGED AREA. PERFORMED NDT INSPECTION. NO CRACK, NO CORROSION FOUND. FABRICATED EXTERNAL DOUBLER AND EXTERNAL REPAIR TRIPLER. CLEANED, TREATED AND PRIMED AREA AND REPAIR PARTS. INSTALLED REPAIR PARTS IAW FORM FAA 8110-3 NUMBER 07529 DATED 11-09-07 SEMAN DRAWING NUMBERED-4645 DATED 11-08-07, SRM 51-1-21, DC8 51-3-0, DC8 NDT SPM PART 08-00-02 TO 07, FORM SEMAN 242-4, DC8 SRM 51-1-8B, DC8 SRM 51-1-11, 51-3-0, 51-1-20D, AND 51-3-1.