PS Magazine - TB 43-PS-591

PS, The Preventative Maintenance Monthly

ISSUE 591

FEBRUARY 2002
PS Magazine - TB 43-PS-591 - Page 21 of 33
PS 591
FEB 02
39
If you get the NO-GO readout
only after you’ve washed the
bird, put a small amount of iso-
propyl alcohol, NSN 6810-00-
286-5435, in the antenna recep-
tacle. That will dry up the excess
water. Or use a blast of shop air
to blow out the water.
Once it’s dried out, do another
operational check on the top IFF
antenna to make sure it’s work-
ing. If it still won’t work, trou-
bleshoot the IFF antenna system.
Keep that NO-GO at bay by
taping the receptacle or putting a
plastic cap, NSN 5340-00-211-
8188, on it before you wash
the bird.
PS 591
FEB 02
38
OH-58D…
A
nytime you wash your Kiowa Warrior with the forward cowling removed, remem-
ber to cover the top IFF antenna receptacle. If you forget, water gets in and can short
out the antenna when you reinstall it.
That means you’ll get a NO-
GO reading on the MFD (multi-
functional display) when you do
your pre-flight checks. A NO-
GO means your aircraft isn’t
ready to identify itself to other
aircraft and ground facilities.
‘Course, a NO-GO could also
flash if you’re too rough remov-
ing the cowling while the cable
is still attached. Any
pulling or
tugging can damage the IFF
cable. So check the cable and
the connector pin for damage if
you get a NO-GO.
ready
for a
bath?
sure, buddy,
but
cap
my
IFF connector
to keep the
water out!
…and while
you’re at it, Be
careful
with my
IFF cable when
you remove my
forward cowling!
Pulling or tugging while cable is
conected can damage top IFF cable
Still get NO-GO after washing?
Troubleshoot IFF antenna
Cap or tape opening before washing
591. 38-39 (X)
1/8/02
4:51 PM
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