geometrical pattern, using the single-wire method.
The following general rules apply to safety wiring:
1. All safety wires must be tight after installa-
tion, but not under so much tension that normal
handling or vibration will break the wire.
2. The wire must be applied so that all pull
exerted by the wire tends to tighten the nut.
3. Twists should be tight and even, and the wire
between nuts as taut as possible without overtwisting.
Wire between nuts should be twisted with the hands.
The use of pliers will damage the wire. Pliers maybe
used only for final end twist before cutting excess
Annealed copper safety wire is used for sealing
first aid kits, portable fire extinguishers, oxygen
regular emergency valves, and other valves and levers
used for emergency operation of aircraft equipment.
This wire can be broken by hand in case of an
When all adjusting and rigging on the cables is
completed, safety the turnbuckles as necessary. Only
two methods of safetying turnbuckles have been
adopted as standard procedures by the armed
services: the clip-locking (preferred) method and the
Figure 2-59.Safetying turnbuckles: (A) preferred method; (B) wire-wrapped method.