What was found
DURING ROUTINE C CHECK INSPECTION, FOUND IMPROPER REPAIR ON MAIN CARGO DOOR FORWARD LOWER JAMB CORNER AT STATION 120.000 - 210.000 LONGERON 19-23 LT. REMOVED EXISTING REPAIR. REMOVED DAMAGED AREA. PERFORMED NDT INSPECTION. NO CRACK AND NO CORROSION FOUND. FABRICATED REPAIR DOUBLER, REPAIR TRIPLER, FILLERS, FINGER DOUBLERS. CLEANED, TREATED, AND PRIMED AREA AND REPAIR PARTS. INSTALLED REPAIR PARTS IAW FAA FORM 8110-3 DATED 5/8/09, AD 2006-03.4, SB DC853-079, DRAWING SR08530027, DRAWING ED-4925 DATED 3/30/09, SRM 51-1-21, 51-1-20D, SRM 51-3-0, NDT SPM PART 06-10-01-001, SRM 51-1-8B, SRM 51-1-11, AND SRM 51-3-1.