Annunciators; O De Annunci At I O Ns; Failure Annunciations - Honeywell BENDIX/KING KAP 140 Maintenance Manual

2.6 ANNUNCIATORS

2.6.1 MODE ANNUNCIATIONS
The FCC provides four alphabetic display fields for mode annunciations. The four fields provide
annunciations for the roll coupled mode, roll arm mode, pitch coupled mode, and pitch arm mode.
The roll coupled mode annunciations are: ROL, HDG, NAV, APR, and REV. The roll arm mode
annunciations are: NAV, APR, and REV (with "ARM"). The pitch coupled mode annunciations are:
VS, GS, and ALT. The pitch arm mode annunciations are: GS and ALT (with "ARM"). NOTE: GS
ARM is displayed in the roll arm mode field (to allow simultaneous display of ALT ARM in the pitch
arm mode field). A boxed AP
the autopilot is engaged.

2.6.2 FAILURE ANNUNCIATIONS

A failure that prevents engagement of the roll axis (i.e. invalid roll servo) is indicated by the red "R"
annunciator, signifying loss of roll servo control. Failures that prevent continued roll command
generation (e.g. invalid turn coordinator) are indicated by "------" in the roll coupled field. Pitch
failures are similarly indicated, with a red "P" annunciator and "------" in the pitch coupled field. A
failure that prevents roll axis control will also inhibit autopilot engagement. Failures in the pitch axis
will disengage the autopilot, but will allow subsequent engagement of the roll axis, with the pitch
coupled field dashed.
The FCC also provides a manual pitch trim indication of UP and DN. This indicates a passive trim
failure if autotrim is installed. After ten seconds, the trim indications flash. A failure of the trim axis
is indicated by a solid "PT" display, as well as an external TRIM FAIL annunciator.
If the Gilham code is invalid or the pressure sensor input is invalid, the altitude alerting and altitude
arm functions are disabled. This is indicated by a dashed display of selected altitude.
Revision 2, Dec/2002
CS:15574F02.IDU
BENDIX/KING
KAP 140
is displayed along with all the above annunciations indicating
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