PS Magazine - TB 43-PS-706

PS, The Preventative Maintenance Monthly

ISSUE 706

SEPTEMBER 2011
PS Magazine - TB 43-PS-706 - Page 14 of 33
24
PS 706
SEP 11
25
PS 706
SEP 11
That’s
the
case
with
the
AN/APR-39 processor. When
you turn in the processor for
depot repair,
do not remove
the
A7, user data module (UDM)
circuit card assembly (CCA)
either
the AN/APR-39A(V)1
digital processor, NSN 5895-
01-395-7447, or the AN/APR-
39A(V)4
digital
processor,
Turning in processors to the depot without the UDM card puts the brakes on the
repair delivery schedule and the ability to Fll requisitions in a timely manner. This
results in aircraft on ground (AOG), which has a negative impact on readiness rates.
So, make sure that all processors are turned in to the depot with the UDM card
installed. That means do not separate them.
M
echanics, ignoring Black Hawk shock strut inspections means
you’ll pay the price sooner or later.
Clean and inspect the struts and check the strut’s pistons daily
for lube like it says in TM 1-1520-237-PMD.
You’ll save yourself time and energy and your unit lots of
down time and repair dollars if you do PM now rather than
extensive repairs later.
If the struts are left unchecked, dirt and crud build up and
can get into the seals. When that happens, the gunk can cut or
weaken the seals, causing hydraulic leaks.
Strut your stuff by using a little hydraulic fluid, MIL-PRF-5606,
applied to a clean cloth and a little elbow grease to clean the
struts. This will prevent a buildup of dirt, crud and corrosion.
While
you
have
your
cloth and hydraulic fluid
out, take time to clean the
tail wheel strut and lower
stabilitor actuator rod. If
there is surface corrosion
on the actuator rod, remove
corrosion
with
abrasive
Then wipe them down with
the cloth and fluid.
All Aircraft…
Turn in CompleTe
An/Apr-39
proCessors
UH-60 Series…
Clean
shock
struts before and
after each flight
Clean lower
stabilator
actuator rod and
tail wheel strut
Do not remove UDM from processor
one way to slow down
the supply system is
to remove parts from
components that should
stay
with the end item.
what
are you
doing?
I’m going to ship
this processor to
depot for repairs.
hold
up, is the
udm card
inside?
you remember what
happened
last time
you
sent in the processor
without it!
since you like
struttin’,
strut
on over here and
clean my struts
and actuator rod!
706 24-25.indd
1-2
7/25/11
4:57 PM
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