PS Magazine - TB 43-PS-613

PS, The Preventative Maintenance Monthly

ISSUE 613

DECEMBER 2003
PS Magazine - TB 43-PS-613 - Page 21 of 33
PS 613
DEC 03
39
AH-64A/D…
A
ircraft armorer, your Longbow or A-model Apache’s Target Acquisition
Designation Sight/Pilot Night Vision Sensor (TADS/PNVS) boresight, nightside
and dayside shroud covers can damage the TADS/PNVS if they’re forgotten and left
on during operation.
Leaving the covers on while operating the TADS will damage the day side sub-
assembly shroud, the covers and the shroud’s internal anti-ice card.
Instead of tying a string around your finger as a reminder, do a walk-around to
ensure all the covers are removed before rotating the TADS.
A useful idea is to tie all
the covers together with
some elastic cord, 8305-
00-276-7575, so they can
be removed at the same
time before TADS/PNVS
operation. That’ll also
keep covers together.
The TADS/PNVS con-
tain
some
expensive
LRUs. The bore sight
pro-
tective cover, if left on, is
usually the culprit that
damages or scrapes the
sensitive optics when the
TADS turrent is rotated.
thanks for
removing my
tads/pnvs
covers!
don’t
worry. I
gotcha
‘covered!’
That
is the
question!
veryily,
thou sayest
a mouthful!
The
answer
is
no!
to expound:
“Painting hooks can
prevent proper visual inspections of
cracks. Check out TB 43-0142 for the
details on lifting device care.”
So whenever you operate the
TADS/PNVS, take off the pro-
tective covers to prevent jam-
ming the turrent. But when you
remove any of
the LRUs on the
TADS/PNVS for storage or
shipment, keep your fingers off
the optic lenses and use the
covers to give the lenses the
best protection.
‘Course, when shipping or
storing TADS/PNVS LRUs,
use the shipping containers out-
lined in TM 1-5855-265-20 to
protect the unit from damage.
Tie covers together with cord
Remove bore
sight covers
before
operating
TADS/PNVS
Remove all covers and engine plugs before operations
To paint
or not
to paint
yon
hangar
lifting
hook?
613. 38-39 (C)
10/31/03
5:03 PM
Page 1
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