FAA Advisory Circular 43.13-1B

Acceptable Methods, Techniques, and Practices

Aircraft Inspection and Repair

AC 43.13-1B | 7. Aircraft Hardware, Control Cables, and Turnbuckles | 7. Safetying | 7-124. Safety-Wiring Procedures

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AC 43.13-1B
9/8/98
FIGURE 7-3. Securing screws, nuts, bolts, and snaprings.
copper shear safety wire. Particular care
should be exercised to ensure that the use of
safety wire will not prevent emergency opera-
tion of the devices.
7-124. SAFETY-WIRING PROCEDURES.
There are many combinations of safety wiring
with certain basic rules common to all appli-
cations. These rules are as follows.
a. When bolts, screws, or other parts are
closely grouped, it is more convenient to safety
wire them in series. The number of bolts, nuts,
screws, etc., that may be wired together de-
pends on the application.
FIGURE 7-3a. Wire twisting by hand.
b. Drilled boltheads and screws need not
be safety wired if installed with self-locking
nuts.
Page 7-20
Par 7-123
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