(1) Facilities, Equipment and Materials. The
components. Use only water or water based
following equipment and materials are required:
materials. Disbonds may result and loss of
Weights, Shot Bags, Pressure Regulator, Heat Lamp,
structural integrity may occur.
Vacuum Cleaner, HEPA Filter, Drill Motor, 2000 RPM,
Drill Stop (Common Support Equipment), Twist Drill,
(b) Deine both the depth and extent of the
Carbide, 1/8 Inch Diameter, Temperature/Vacuum Con-
delamination using NDI according to
troller, Injection Gun, Metallic Retainer Barrel, 2 1/2
Ounce, Clamps, Flash breaker Tape, Adhesive, Liq-
technical manual. Lay out the damage
uid (See System Speciic Technical Manual), Injection
Cartridge, 2 1/2 Ounce, Disposable, Injection Nozzle,
Disposable, Silicon Carbide Abrasive Paper, Wiping
(c) Remove NDI couplant by wiping with
Cloth, Release Film, 1/2 Inch Surgical Rubber or
clean, water moistened wiping cloth.
Plastic Tubing ZZ-T-831.
(d) Drill 1/8 inch diameter holes at each end
(2) Resin Injection For Delaminations Not
of the delamination. Minimum spac-
Open To An Edge Repair Procedure.
ing between holes is 1/2 inch. Drill
to delamination depth plus 0.005 inch
(a) Remove dirt, grease and aircraft luids
using drill stop.
from repair area as described in para-
(e) Vacuum dust and debris from holes.
Verify that a leak path exists between
the disbond and the holes drilled using
DO NOT use oil or oil based materials
the following procedure (see igure
as NDI couplants on advanced composite