PS Magazine - TB 43-PS-668

PS, The Preventative Maintenance Monthly

ISSUE 668

JULY 2008
PS Magazine - TB 43-PS-668 - Page 22 of 33
40
PS 668
JULY 08
41
PS 668
JULY 08
Don’t snatch out the AN/AVS-6(V)1/2 night vision goggle (NVG) power pack
cable. That wears out the fairlead block inside the HGU-56/P helmet connector
access cover. Pretty soon, the entire connector will come out.
Because the connector does not have
a snug Ft inside the block when it’s worn,
your ALSE tech may need to put one wrap of
pressure sensitive tape, NSN 7510-00-634-
1549, around the cable’s grooved section to
keep it from slipping out. This shim keeps
the connector tight and in place until your
ALSE tech gets a new assembly.
A shaky connection is a safety hazard because it could result in intermittent or
complete loss of night vision. But don’t try to secure the connector by over-tightening
the access cover screws. That can crack the cover and make the loose connection
even looser.
If you have a worn block or a cracked cover on your helmet, have your ALSE tech
order the new block with NSN 5340-01-397-0321 and the cover with NSN 5340-01-
398-3749.
ALSE techs, have you ordered a replacement communications cord, NSN 5995-01-391-
9894, for your HGU-56/P aircrew integrated helmet system (AIHS)?
If the answer is yes, and it doesn’t work, hold your
horses and hold on to those cords!
Some bad cords snuck into the supply system.
Check your cord now! If it’s stamped either 1680-
ALSE-198-1 or 1680-ALSE-210-1, it may be bad.
Some of the cords were incorrectly manufactured.
The cord should have a mounting bracket factory-
crimped and shrink-wrapped around the female
microphone connector. The incorrectly manufactured
cords have the mounting bracket and shrink wrap
packaged loosely with the cord. If the ALSE technician
attempts to crimp the bracket with pliers, he’ll likely
damage the female microphone connector. The
shrink wrap would then hide the damage and could
lead to an in-flight failure.
To get turn-in credit, submit a Quality DeFciency Report (QDR). The quickest way to get
that done is through the Joint DeFciency Reporting System (JDRS) website. Go to:
To process the QDR faster, make sure you refer to QDR W31NWY050414.
HGU-56/P,
NVG…
Slippery Night Vision
Goggle Connector
ALSE…
Helmet Communication
Cord Problems
something’s wrong!
I can’t communicate
in my bird.
no problem.
I think you got
one of those
bad cords.
I can fix it!
Inspect cord for problems
another
slippery
connector!
I’ll take
care of
that!
pilots, let’s
solve two
problems at
one time…
loose
connectors
and cracked
covers.
Tape
around
Ftting
holds
connector
in place
Order new cover with
Replace worn
block with
NSN 5340-01-
397-0321
hello!?
anybody
there?!
668.40-41.indd
1-2
5/26/08
5:12:33 PM
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