What was found
R-3 DOOR LOWER AFT FRAME AT FS 1305, STR 27 FOUND CRACKED INSIDE LIGHTING HOLE. REMOVED EXISTING DOUBLER. STOP DRILLED CRACK AND VERIFIED BY NDT CRACK DOES NOT GO PAST STOP DRILL. FABRICATED AND ISNTALLED DOUBLER IAW SRM 53-50-00, FIGURE 19. (X)