What was found
LCQ - MAJOR REPAIR - DURING C-09 CHECK EXFOLIATION CORROSION WAS FOUND ON AFT LOWER CORNER OF THE AFT CARGO DOOR BODY SKIN CUTOUT (BEAR STRAP) BS 1440, STR 26 R/H. MAINTENANCE REMOVED CORROSION AND FOUND MATERIAL LOSS OUT OF LIMITS; PERFORMED HFEC INSPECTION AND DISCOVERED A 1 1/4" CRACK ON INNER SKIN BS 1440, STR 26 R/H; STOPPED DRILLED CRACK AND PERFORMED ANOTHER HFEC INSPECTION TO VERIFY THE CRACK WAS CONTAINED. REMOVED NUT PLATE STRIP, INTERCOSTALS, AND LOWER SEAL RETAINER TO GAIN ACCESS FOR REPAIR; OPENED UP SKIN SECTION BS 1380 TO BS 1460 AND TRIMMED OUT A 3" RADIUS OF CORRODED & CRACKED AREA OF BEAR STRAP; FABRICATED 2 EACH FILLERS, A DOUBLER, AND A TRIPLER; INSTALLED REPAIR PARTS AND REMOVED PARTS IAW A