PS Magazine - TB 43-PS-677

PS, The Preventative Maintenance Monthly

ISSUE 677

APRIL 2009

PS Magazine - TB 43-PS-677 - Page 21 of 33
38
PS 677
APR 09
39
PS 677
APR 09
m
echanics, your bird is not watertight. Corrosion still happens any time and any
place where water drips into the bird after washing.
After a thorough washing of your aircraft, water pools in hidden areas. Not locating
and drying up that water invites corrosion. To prevent it, look for water in the most
unlikely places.
For example, on a Black Hawk, if you haven’t
removed the battery utility bus circuit breaker panel
lately, it’s time to take a peek behind the panel.
Another place that’s often overlooked after
washing is the Black Hawk’s lower console.
Look underneath the circuit breaker panel and
inspect the box and the terminal lugs for signs
of corrosion. If you see corroded parts, call
the avionics folks to the rescue.
UH-60 Series…
A nother
Angle
on Blade
Booting
All Aircraft…
The Aftereffects of
washing
if you don’t have
either of these
tools, then use
some 550 cord.
it’ll get the
job done with a
little muscle!
mechanics,
in ps 612
(nov 03),
we told
you how
to make a
blade boot
installation
tool for
the black
hawk’s
tail rotor
blade.
the current
locally made
tool listed
on fig 20
7
,
wp 1805 00
of tm 1-1520-
23
7
-23-20
can scrape
and scar the
blade as you
slide the
boot down
the blade.
as the
ol’
saying
goes,
there’s
more
than
one
way
to skin
a cat.
so here’s
another
way
to
install
the boot,
nsn
5340-01-
108-3681,
if you
don’t have
either
tool on
hand.
grab a boot
and loop a
piece of
550 cord,
nsn 4020-
00-240-2146,
around it.
slide the
boot on and
up the blade
using the
cord on both
sides.
it’ll take a
little muscle
to maneuver,
but it beats
trying to use
your bare
hands.
check your specific air-
craft tm for information
on corrosion prevention.
come back!
you didn’t dry
up all the water
left in me!
Check under panel for corrosion
Treat
corrosion
like TM
says
677.38-39.indd
1-2
3/3/09
3:16:29 PM
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