Brief Description: Drilling Topm Skins and Stiffeners
Centered Stiffeners and match drilled them as called out in previous steps except for starting from back to front Cleco 1074 Forward Top Skinto 1006 Bulkhead the 1007 Frame, the 1075 Aft Top Skin and the 1073 Side Skins and 1032 Longerons Match drilled all the Stiffener holes in Forward Top Skin Final Drilled the rest of the holes in the Top Skins except for the holes associated with 1006 Bulkhead Made Horizontal Stabilizer Attachment Bar Support Angle from aa6-125x3/4x3/4 angle using dimensions called for Page 10-13 step1
