PS Magazine - TB 43-PS-688
PS, The Preventative Maintenance Monthly
ISSUE 688
MARCH 2010
38
PS 688
MAR 10
39
PS 688
MAR 10
Go easy when closing the door. Slam-
ming it shut like you’re throwing a
haymaker in a barroom brawl damages the
main transmission fairing support holes.
Slamming the door against the support
holes puts unnecessary stress on the holes.
Consistently slamming the door elongates
the holes and eventually causes cracks
that’ll need repair.
Then aircraft vibration from flying your
bird does even more hole damage. Over
time, the sliding door won’t lock and you’ll
be calling the airframe shop for repair.
So avoid hole damage and be gentle
with the door.
i
f the heat’s making you take off all your clothes, it might be that your microclimate
cooling garment (MCG) or your microclimate cooling unit (MCU) doesn’t have
enough coolant.
When you sign out an MCG from the ALSE ofFce, make sure both it and the MCU
have been properly serviced with coolant. Check out EM 0250 and the -23 manuals
for procedures on mixing and servicing the coolant.
If you hook an empty garment into your aircraft’s cooling unit, the garment can
pull all the fluid from the MCU. The opposite will happen if you have an MCG that
is full and an empty MCU.
The coolant in the vest goes through
the MCU to be cooled and if the
garment is dry, it will put air in the
system and will not cool as well.
If you do this a few times without
servicing the MCU or the MCG, you’ll
eventually have a dry system. If that
happens, the unit’s pump may burn
out. Then you’ll
really
be hot under
the collar.
Staying cool means making sure
the MCG is serviced before you leave
the ALSE shop. Don’t forget that the
coolant must be purged every 60 days
and before you put the MCG and the
MCU away for winter storage.
it’s getting
hot
in here!
UH-60 Series…
Air Warrior…
it’s getting
hot
in here!
cereal lovers have
three sounds
they
like
to hear!
but there are three
sounds that your black hawk
doesn’t
like to hear…
Slamming door damages
fairing support holes
Make sure vest has enough
coolant before leaving ALSE shop
it’s
hot!
I’m
coming
out of
this!
some-
body
else
forgot
to check
their
vest for
coolant
before
they
left.
When it comes to shutting the
Black Hawk’s main rotor sliding
door,
wham, bam, slam
is
neither
a good practice
nor
a
good sound, mechanics.
688.38-39.indd
1-2
1/25/10
3:08:42 PM
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