TM 1-1510-224-10
KKKK = Northing Kilometers
MMM = Northing or easting meters
NOTE
Zero is assumed for meters, minutes,
and seconds.
Table 3-11 provides a datum cross reference.
5.
INS mode selector ALIGN. Place the
mode selector to ALIGN when the
INS LOADING message goes out.
(2)
INS BIT check.
1.
UTIL on MFD Depress.
2.
SYSTEM BIT (R1) Depress.
3.
BIT
check
Conduct
on
installed
equipment
as
required.
Before
conducting the INS BIT, check that
the INS is in align state 8 or lower.
Before INS is placed in the NAV
mode of operation, set up the EHSI
for an interface check by performing
the following:
a.
INS
on
EHSI
Select
by
depressing INS/TCN on EFIS
display controller.
b.
INS Select on single needle
bearing source selector switch on
EFIS display controller.
4.
INS (R2) Depress. Check indications
as follows:
5.
NAV on flight director mode selector
Select:
a.
MFD INS BATT, INS FAIL, and
WAYPOINT
ALERT
CWA
annunciators (3) illuminated.
b.
EHSI INS needle 30 degrees
right of lubber line and course
deviation
bar
displaced
right
followed by INS needle centering
and
course
deviation
bar
displaced left. Check WPT alert
annunciator illuminated.
c.
Aircraft
caution/advisory
annunciator panel Amber
INS
annunciator light illuminated.
d.
INS
mode
controller
Green
READY light and red BATT light
illuminated.
e.
Mission annunciator panel Green
INS UPDATE and amber NO INS
UPDATE
annunciator
lights
illuminated.
f.
After
15
seconds
the
text
COMPLETE or any ACTION or
MALFUNCTION codes will be
displayed.
If
ACTION
or
MALFUNCTION
codes
are
displayed they may have been
cleared by the BIT test and the
display is showing what was
previously there. The only way to
ensure that they are cleared is to
conduct another BIT and the text
COMPLETE appears.
(3)
Waypoints/flight plan.
1.
Waypoint list Build as follows:
a.
Mode switch B Depress to select
FLIGHT PLAN page.
b.
WPT LIST (R4) Depress. WPT
numbers 10 59 are shown. The
WPT select window surrounds a
WPT line.
c.
Waypoint string (line number,
WPT
ID,
and
LAT/LONG
coordinates)
Enter
into
scratchpad.
d.
ADD/SEL (R1) Depress to load
WPT into system.
Table 3-10. INS Action Codes and Recommended Actions
Code
Recommended Action
01
Shut down INS.
02
Watch for degradation (NAV). During ground operation, downmode to STBY and restart
alignment
03
INS may be used for navigation. One or more analog outputs are not functioning properly.
Check 26 VAC circuit breakers. HSI and autopilot.
04
Downmode to STBY and restart alignment (ground operation only).
05
Correct problem in interfacing system (could be INS). Will not seriously affect perfor-
mance.
BT04138
3-72
