Wire Repairs

Question 1

Is there a preferred repair to a splice?

Answer 1

Yes, replace the wire

Question 2

What is the limit on splicing for a wire?

Answer 2

3, excluding production ones in wiring diagrams

Question 3

What must be done if multiple wires in a loom need to be spliced?

Answer 3

The splices must be in staggered, and no splices can overlap

Question 4

Can splicing be a allowable repair for engine harness and fire wires?

Answer 4

Yes but only until the next maintenance is done

Question 5

How would single conductor wires with chafing or damaged insulation be repaired?

Answer 5

Spliced if possible

Question 6

Can wires be rerouted to prevent future damage?

Answer 6

If necessary

Question 7

When would heat damaged wire be changed?

Answer 7

When insulation changes colour

Question 8

What can affect the type of repair for a shielded cable?

Answer 8

Damage type

Question 9

What must be ensured when repairing a shielded cable?

Answer 9

Shield must be fully closed and electrically continuous around repair area

Question 10

What restrictions are there when taping shielded cables?

Answer 10

Fluid resistant tape out side pressurised area

Grade D insulation tape for high temperature areas

Question 11

Where can splices not be installed?

Answer 11

In metal or flexible tubes
In 12 inches of termination device
Under clamps
Fuel tanks
Frequently bent wire harness

Question 12

Besides location, what other restrictions are there when splicing?

Answer 12

No more than two splices in any segment normally

Can not splice to save scrap wire

Question 13

What is the usual way of dealing with damaged coaxial cables and why?

Answer 13

Replace them to maintain original impedance value

Question 14

If done what is used for repairing coaxial cables?

Answer 14

Plug and receptacle, with a maximum of two additional disconnects

Question 15

What systems coaxial cables must always be replaced?

Answer 15

Long range altimeter
Glide slope
Any repaired cables

Question 16

What must be done with all undesignated wires?

Answer 16

Dead end with caps or sleeves

Question 17

What range does the dead ending have to be done within near connectors?

Answer 17

4 to 6 inches

Question 18

What must be done after dead ending?

Answer 18

Wrapped, tied, and stowed near unused termination

Question 19

Do stowed wires need to be visible outside the bundle?

Answer 19

Yes

Question 20

What states the procedure for dead ending configurations such as wires, cables,and terminals?

Answer 20

SWPM 10-10-11

Question 21

What is the cause of a main proportion of aircraft faults?

Answer 21

Poor connections from normal wear and tear

Question 22

What can be done to ensure high quality connections?

Answer 22

Correct tools
Correct technique
Correct terminations

Question 23

What are the main precautions for tooling when stripping back wires?

Answer 23

Adjust automatic tools carefully
Use appropriate blade for the right thickness of insulation
Use a knife for stripping down coaxial cables.

Question 24

What precautions should be taken for the technique of stripping wires?

Answer 24

Hold the wire perpendicular to the cutter
Ensure insulation is cut clean
Hand cut lengths of 3/4 inch or more in multiple parts
Scratch coaxial outer layer without damaging the shield

Question 25

Why would strands be retwisted?

Answer 25

To retire lay and tightness

Question 26

In all cases of wire stripping, what should be ensured?

Answer 26

Tooling is correct and in a good condition

Greatest of care is exercised

Question 27

Which brand is the most common automatic wire stripping tool?

Answer 27

Strip master

Question 28

Which brand is the most common hand wire stripping tool?

Answer 28

Super champ

Question 29

Can a super champ be used to crimp wires on aircraft?

Answer 29

No

Question 30

What size insulation slug can the strip master strip up to?

Answer 30

7/8 inch