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Figure 4-16. Pneumatic Circuit for ADS Pitot and Static Leak Test.
Up
TM-9-1270-219-13-P Fire and Flight Air Data Subsystem Helicopter Armament: XM 143 PN 03-004-02 Manual
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SECTION III. FUNCTIONAL TEST
TM 9-1270-219-13&P
AVIATION
INTERMEDIATE
MAINTENANCE
INSTRUCTIONS
Section
I.
SERVICE
UPON
RECEIPT
OF
MATERIEL
Inspect
for
loose
rivets
securing
support
Inspecting Instructions.
assembly
to
boom
tube
assembly.
Visually Inspecting the AADS.
a.
(2)
lnspect
the
boom
tube
assembly
and
mounting
bracket
for
cracks.
Inspect
Inspect the AADS for dust, dirt, lint, grease,
(1)
mounting bracket for loose rivets.
oiI
or
other
foreign
matter,
scratched
or
damaged surfaces which would impair the
c. Visually Inspecting the EPU.
o p e r a t i o n of the AADS. Inspect for loose or
illegible
or
obliterated
missing
screws,
I n s p e c t the EPU for dust, dirt, lint, grease,
(1)
markings and broken or missing wire locks.
oil
or
other
foreign
matter,
scratched
or
damaged surfaces, loose or missing screws,
a n d illegible or obliterated markings.
Inspect the electrical connector for broken,
(2)
loose, bent, corroded or missing pins.
Inspect
the
electrical
connector
J1
for
(2)
broken,
loose,
bent,
corroded
or
missing
Check that the pitot hole, the two static
(3)
pins.
h o l e s and the two drain holes in the head
are unobstructed.
Check that the pitot and static connectors Ps
(3)
a n d Pt on the front panel are unobstructed,
Check
that
the
pitot
and
static
connectors
(4)
and have undamaged threads.
on the body are unobstructed and have
undamaged threads.
d. Visually Inspecting the LAI.
(1) Inspect the LAI for dust, dirt, lint, grease,
Check
that
the
swivelling
probe
rotates
(5)
pitch
and
oil
or
other
foreign
matter,
scratched
or
360
in
through
freely
damaged surfaces, loose or damaged screws.
a p p r o x i m a t e l y 120 in yaw (fig. 1-9).
(2) Inspect the electrical connector for broken,
Visually Inspecting the Sensor Installation.
b.
loose,
bent,
corroded
or
missing
pins.
(1) Inspect the sensor installation for loose or
(3) Inspect the front of the LAI for damaged
glass or illegible or obliterated dial markings.
missing bolts, screws and threaded inserts.
Section
II.
PREEMBARKATION
INSPECTION
OF
MATERIEL
IN
UNITS
ALERTED
FOR
OVERSEAS
MOVEMENT
b. Inspection Points.
General.
a I n s p e c t i o n This inspection is conducted on materiel
(1)
Screw
heads
must
be
in
serviceable
in
alerted
units
scheduled
for
overseas
duty
to
condition, and threads must not be stripped.
ensure
that
such
materiel
will
not
become
Internal threads must not be stripped.
unserviceable
in
a
relatively
short
time.
The
inspection
prescribes
a
higher
percentage
of
remaining useable life in serviceable materiel to
Cable assemblies must not have loose or
(2)
beyond
need
meet
a
specific
minimum
worn
connections,
cut
or
damaged
serviceability.

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