Avionics News December 2022 - 49

IT CAN'T BE EASILY SEEN,
BUT THAT DOESN'T MEAN
IT'S WORKING PROPERLY
In the same way, wiring in an aircraft carries voltages
and signals to every part of the airframe and engines,
and all the way to the wing tips and top of the fin.
The human body cannot function without a
circulatory system. An aircraft cannot function without a
working wiring system.
But, as with our veins, which are largely unseen and
simply presumed to be working, we often don't worry
about our aircraft's wiring until it gives us problems.
A great number of the general aviation aircraft in New
Zealand, however, are now over 30 years old. So should
we be inspecting the wiring system in our aircraft before
it gives us problems?
What happens as wiring ages?
The wiring originally installed in older aircraft has
been subjected to different environmental conditions -
hot and humid to cold and icy - that it was not designed
to forever withstand.
It was also never designed to resist the environmental
onslaught of modern-day synthetic lubricants and
cleaners.
As a consequence, it's degrading. Wires chafing
against each other, incorrectly supported in the wiring
harness, and rubbing against pipes or aircraft structure
Continued on following page
Wiring bundle attached to a flight control cable; note the metal shavings on the wire.
avionics news * december 2022 49

Avionics News December 2022

Table of Contents for the Digital Edition of Avionics News December 2022

Avionics News December 2022 - Intro
Avionics News December 2022 - Cover1
Avionics News December 2022 - Cover2
Avionics News December 2022 - 1
Avionics News December 2022 - 2
Avionics News December 2022 - 3
Avionics News December 2022 - 4
Avionics News December 2022 - 5
Avionics News December 2022 - 6
Avionics News December 2022 - 7
Avionics News December 2022 - 8
Avionics News December 2022 - 9
Avionics News December 2022 - 10
Avionics News December 2022 - 11
Avionics News December 2022 - 12
Avionics News December 2022 - 13
Avionics News December 2022 - 14
Avionics News December 2022 - 15
Avionics News December 2022 - 16
Avionics News December 2022 - 17
Avionics News December 2022 - 18
Avionics News December 2022 - 19
Avionics News December 2022 - 20
Avionics News December 2022 - 21
Avionics News December 2022 - 22
Avionics News December 2022 - 23
Avionics News December 2022 - 24
Avionics News December 2022 - 25
Avionics News December 2022 - 26
Avionics News December 2022 - 27
Avionics News December 2022 - 28
Avionics News December 2022 - 29
Avionics News December 2022 - 30
Avionics News December 2022 - 31
Avionics News December 2022 - 32
Avionics News December 2022 - 33
Avionics News December 2022 - 34
Avionics News December 2022 - 35
Avionics News December 2022 - 36
Avionics News December 2022 - 37
Avionics News December 2022 - 38
Avionics News December 2022 - 39
Avionics News December 2022 - 40
Avionics News December 2022 - 41
Avionics News December 2022 - 42
Avionics News December 2022 - 43
Avionics News December 2022 - 44
Avionics News December 2022 - 45
Avionics News December 2022 - 46
Avionics News December 2022 - 47
Avionics News December 2022 - 48
Avionics News December 2022 - 49
Avionics News December 2022 - 50
Avionics News December 2022 - 51
Avionics News December 2022 - 52
Avionics News December 2022 - 53
Avionics News December 2022 - 54
Avionics News December 2022 - 55
Avionics News December 2022 - 56
Avionics News December 2022 - 57
Avionics News December 2022 - 58
Avionics News December 2022 - 59
Avionics News December 2022 - 60
Avionics News December 2022 - 61
Avionics News December 2022 - 62
Avionics News December 2022 - 63
Avionics News December 2022 - 64
Avionics News December 2022 - Cover3
Avionics News December 2022 - Cover4
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http://www.brightcopy.net/allen/avne/52-11
http://www.brightcopy.net/allen/avne/52-10
http://www.brightcopy.net/allen/avne/52-9
http://www.brightcopy.net/allen/avne/52-8
https://www.nxtbook.com/allen/avne/52-7
https://www.nxtbook.com/allen/avne/52-6
https://www.nxtbook.com/allen/avne/52-5
https://www.nxtbook.com/allen/avne/52-4
https://www.nxtbook.com/allen/avne/52-3
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