line of the hinge. The other, an assembly consisting of lead, three nose ribs, and a channel is located above the top center line of the hinge. This assembly is integral with, and cannot be removed from, the rudder structure. (See figure 115.)      b. Main Beam.      (1) Webs. - Damage confirmed to the web and at least 6/8 inch from the flanges may be repaired according to figure 108, using AN-142AD-4 or 5/32-inch Cherry blind rivets at 3/ 4-inch spacing around the damage.      (2) Flanges. - Flange damage should be repaired by patching with an equivalent area and the same gage material, using three AN442AD-4 rivets each side of the damage. (See figure 108.)		c. Ribs. - Repairs for the rudder ribs should be the same as used for the elevator rib repairs, which are discussed in paragraph 2.a.(1),(2), and (3).      d. Nose Skin. - Repair on the same manner as an alleron; use an external patch extending to the nearest ribs and to the edges of the nose skin. (See figure 99.)      e. Brace Tube. - This tube may be repaired by insertion of a 7/16-inch diameter aluminum rod attached with 1/8-inch rivets as in figure 116.      f. Rudder Assembly Locating Fixture. - See figure 117 for the rudder assembly locating fixture.