0015 00  TM 10-1670-287-23&P  D. FOUR-SIDED PATCH AT  FORWARD LEADING EDGE OF  RIBS. C. TRIANGULAR PATCH AT FRONT  LEADING EDGE OF RIBS.  INSIDE VIEW  INSIDE VIEW  SECTION A-A  SECTION B-B ½-IN ½ -IN  1-IN $^{1}$/$_{16}$-IN ¾-IN  SECTION A-A SECTION B-B  ½-IN ½-IN ½-IN 1-IN ¾-IN $^{1}$/$_{16}$-IN $^{1}$/$_{16}$-IN C. OUTSIDE VIEW D. OUTSIDE VIEW  Change 1  0015 00-15 