TM 55-1510-221-10
Table 3-6. Recommended Codes
Malf
Code
Failed Test
10
Invalidheading
11
GR/CS program pin connected in error
12*
Canned altitude profile in use (input altitude invalid)
13
Y velocity change
14
X velocity change
15
Torque limited
16
Invalid pitch and roll
17
Invalid magnetic heading
16
Excessive saturation time
20*
Bearing to waypoint
22*
Bearing to waypoint
23*
Drift angle
24*
Steering converter
25*
True heading converter
26*
XTK converter
27*
Tick mark to fast
31
Ground speed
32
Memory parity
33
Azimuth stabilization loop
34
Inner roll stabilization loop
35
Pitch stabilization loop
36
Accelerometer loop
37
Z platform overtemperature
38
XY platform overtemperature
40
Heading error
42
Drift angle !gt!45°
44
Azimuth gyro drift ratye
45
Gyro scale factor or loaded altitude
47
15-second loop
49
Fix measurement too large
51*
Excessive wind
54*
Incomplete conversion from UTM to L/L
57
XY platform rotation rate
59
600 millisecond loop
60
X or Y sample and hold change
62
XY platform rotation rate
63
CDU self-checks
*Failed test does not illuminate WARN light on CDU.
Modes of
Recommended
Operation
Action Code
ALIGN
04
ALIGN
01
ALIGN, NAV
05
NAV
02
NAV
02
ALIGN, NAV
02
ALIGN, NAV
05
ALIGN, NAV
05
ALIGN
04
ALIGN, NAV
03
ALIGN, NAV
03
ALIGN, NAV
03
ALIGN, NAV
03
ALIGN, NAV
03
ALIGN, NAV
03
STBY
01
NAV
02
STBY, ALIGN, NAV
02
ALIGN, NAV
01
ALIGN, NAV
01
ALIGN, NAV
01
ALIGN, NAV
01
NAV
01
NAV
01
ALIGN
04
NAV
02
ALIGN
02
ALIGN
04
NAV
02
NAV
02
ALIGN, NAV
05
STBY, ALIGN, NAV
05
ALIGN
02
STBY, ALIGN, NAV
02
ALIGN
04
NAV
02
STBY, ALIGN, NAV
02
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