d. Position the AADS on the sensor installation
guide through tube assembly (8) and out through support
support assembly (9) so that the alignment pin on the
AADS engages the hole on the support assembly.
c. Insert pitot and static lines through mounting
e. Secure the AADS with three bolts (16) and
washers (15). Torque bolts to 35 + 5 in-lb.
f . Safety wire (item 2, Appendix F) the three bolts.
d. Position mounting bracket (7) in place on canopy
side rail and secure with screws (6).
g . Secure grounding strap (1 O) to the AADS and
e . Connect pitot and static lines to the EPU and
fittings, as necessary. Route and secure lines with clamps, as
l e a k tests as specified in paragraph
f. Install canopy channel support (5) with three
screws (3) and washers (4).
4-3. Removing the AADS
g. Conduct PMCS (B) Chapter 4, Section II and
(10, fig. 4-1 ) and attaching screws (11) from the AADS.
p e r f o r m troubleshooting functional test, Chapter 4, Section
Ill. For alignment and boresighting procedures, refer to
b. Break and remove the safety wire securing the
three mounting bolts.
4-5. Removing the Sensor Installation.
c. Remove the three bolts (16) and washers ( 15)
securing the AADS to the sensor installation support
a. Remove canopy channel support (5, fig. 4-1) b
removing three screws (3) and washers (4) to gain access t
d . Remove the AADS from the sensor installation
pitot and static lines.
s u p p o r t assembly.
b. Guide the pitot and static lines through the
e . Disconnect t h e e l e c t r i c a l c o n n e c t o r 1 8 A 2 J 1 ( 1 4 )
sensor installation and canopy channel. Disconnect pitot
from the AADS.
a n d static lines from union tees (1 and 2) and remove
clamps, as necessary.
f. Disconnect the pitot and static union connectors
(12 and 13) from the AADS. If necessary, loosen helicopter
c. Guide the electrical cable and connector through
plumbing securing clips to allow movement of the pitot and
the sensor installation and canopy channel.
static plumbing (fig. 4-1). Tighten securing clips after the
g. Remove all traces of sealant from mating surfaces
o f the helicopter boom mounting support assembly and the
Screws securing bracket to canopy side
rail must be installed in same order of
44. Installing the Sensor Installation.
removal due to length differences.
a. Route electrical connector 18A2J1 and cable, and
d. Remove screws (6) securing mounting bracket (7)
canopy channel (fig. 4-1).
to the canopy side rail.
b. Position tube assembly bracket near canopy side
rail. Insert electrical connector in mounting bracket (7) and
e. Remove sensor installation.