Abnormal Circumstances - Honeywell KAP 140 Manual

12. The glideslope pointers indicate
the relative position of the glides-
lope path with respect to the air-
craft. (In other words, if the point-
ers are above the center marker,
the aircraft is below the glides-
lope.)

Abnormal Circumstances

If the Warning Flag (HDG)
appears during operation, the com-
pass card indications will be in error.
Power may be removed from the KG
102A Directional Gyro by pulling the
appropriate circuit breaker. The
Selected Course,
Deviation Bar, the NAV flag, and the
To/From Indicator will remain in
operation.
If the Navigation Warning Flag
(NAV) appears during operation,
there are several possibilities: (1) the
NAV receiver is not turned on, (2)
the NAV receiver is improperly
tuned, (3) the ground VOR or LOC
station is malfunctioning, (4) the air-
craft is out of range of the selected
ground station, or (5) the aircraft
NAV receiver has malfunctioned.
(The compass card will continue to
display the aircraft heading even if a
usable NAV signal is not being
received.
If the glideslope pointers
remain out of view during a front
course ILS approach, wither the air-
craft glideslope receiver or the
ground station glideslope transmitter
is malfunctioning. Glideslope is usu-
ally not available during a back
course approach. (The VOR and
LOC course display will continue to
Rev. 0
Jun/98
function normally even if a usable
glideslope signal is not being
received.)
the slaving meter or large discrepan-
cies between the magnetic compass
and the KI 525A compass card may
indicate a failure in the slaving sys-
tem. If a slaving failure should occur,
the Slave/Free Switch should be
moved to select the free gyro mode.
Then, by using manual clockwise or
counterclockwise corrections, the
compass can be rotated to the cor-
rect heading as indicated on the
VOR/LOC
standby compass. The KCS 55A
system should continue to function
normally except the heading infor-
mation will be solely derived from the
KG 102A Directional Gyro. There will
be no automatic heading correction
and periodic adjustments must be
made manually to correct for preces-
sion by reference to the standby
magnetic compass, as with any
directional gyro.
Note: It is desirable to disconnect the
autopilot under the following condi-
tions:
1. HDG flag comes into view.
2. System is in fast slave.
3. During manual slaving.
supply the autopilot with an auto-
matic disconnect signal under these
conditions.
Note: For system limitations in your
particular aircraft type, refer to your
Flight Manual Supplement.
KAP 140 AUTOPILOT SYSTEM
KCS 55A Compass System
A continuous large deflection of
The system has the capability to
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