TM 10-5411-201-14T.O. 35E4-178-14-39.(cont)b.Peel damaged portion of skin from core by lifting and rolling skin.c.Trim core area with a knife to same size as opening while leavingsmall amount of core material on opposite skin.d.Cut aluminum patch 1 1/2 inch (3.8 cm) (Item 4, Appendix E) largerall around than cutout opening.Layout and drill 1/8 inch (3.18 mm) diameter holes in patch.(SeeDetail A.)f.opening.surface.g.skin.h.i.(Item 17,j.with samek.area.Cut core material (Items 7-10, Appendix E) same size as cutoutCore plug should be flush with or slightly lower than panel skinCenter patch over cutout opening and mark patch outline on panelDrill No. 30 diameter holes in panel skin with patch as template.Sand all paint from panel skin within marked area with sandpaperAppendix E).Index patch and panel skin with a mark to allow patch to be replacedorientation.Deburr drill holes and sand all paint from panel skin within marked1.Clean loose core material, dust, and chips from cutout opening.4-173
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