Sectioning Guidelines

General sectioning guidelines:
  • Always adhere to General Practices unless explicitly directed differently in the specific repair procedure.
  • Section panels only when the specific repair procedure indicates that sectioning the panel is allowed.
  • If a section repair requires the removal or installation of additional panels or assemblies, perform the necessary procedures using the specific repair procedure for each panel or assembly.
  • Do not cut underlying panels when performing a section cut.
  • Do not cut within 25 mm. of the center of a bolt hole.
  • If specified in the procedure, create and install a backing plate or reinforcement plate.
  • A backing plate may be installed at a butt joint between sections (as described in create and install backing plates).

  • Only GMA weld section butt joints where explicitly outlined in the procedure.

    If a butt joint includes a flange, do not weld on the flange (flanges are secured using only structural adhesive).

  • Gaps between panels of butt joints should be as small as possible to maximize joint strength.
  • Sections do not require fasteners at butt joints unless specifically indicated.
  • Fill all gaps with structural adhesive.
  • Seal all open seams after welding.