PS Magazine - TB 43-PS-743
PS, The Preventative Maintenance Monthly
ISSUE 743
OCTOBER 2014
23
PS 743
OCT 14
22
PS 743
OCT 14
R
ead
about electrical
systems, helmet
PM and Air
Warrior.
cav
yesterday…
…cav
today!
aviation
All Aircraft…
Be
Safe
with
Electrical SyStemS!
Mechanics,
when working
on electrical
systems,
always make
sure circuit
breakers
are in the
OFF (pulled)
position.
if they
must
be locked or
deactivated,
follow the
procedures in
Para 65. b. 1
of WP 028 00
in TM 1-1500-
323-24-1,
installation
and Repair
Practices
Aircraft
Electric and
Electronic
Wiring.
During aircraft ground
operations, there are
times when positive
lockout deactivation
of circuit breakers will
be
required
to
prevent
damage
to the aircraft
and yourself.
Unfortunately, it’s
not
happening. And that’s
almost always because
mechanics say they don’t
have the equipment to
lock circuit breakers.
Circuit
breakers
must
have
a lockout
ring, collar
or safety
lockout
sleeve
installed on
the circuit
breaker
anytime you
work on
electrical
systems.
if you
don’t
have any of
these items,
order them
now.
Do not
work
on aircraft
electrical
systems until
you get them.
Y’know, you
gotta
lock
out
my circuit
breakers
before
you
start doing
ground
operations!
Don’t worry.
that’s my
next
step!
743 22-23.indd
1-2
9/3/14
10:35 AM
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