System Speciic Technical Manual), Spatula, Cop-
per Sheet, Silicon Carbide Abrasive Paper, Aluminum
speciic technical manual.
Sheet Stock, 0.063 inches or thicker (Local Procure-
ment), Wiping Cloth, Vacuum Bag Repair Materials
Lay out the damage as described
(2) Honeycomb Core Repair Procedure.
Remove NDI couplant by wiping
(a) Clean Part.
Remove dirt, grease
with clean, water moistened cloth.
and aircraft luids from repair area as
(c) Damage Removal.
Remove skin damage along the
damage layout line as described
DO NOT use oil or oil based materials
through both skins, remove the
as NDI couplants on advanced composite
damage so that both skins have
components. Use only water or water based
the same size and shape damage
materials. Disbonds may result and loss of
structural integrity may occur.
Remove the damaged core as
(b) Deine Damage.
Deine both the depth and extent
of the damage using NDI according
Figure 7-13. Procedure for Core Replacement Using the Core Potting Method