CREW
AWARENESS
AIRPLANE
OPERATIONS
MANUAL
2-04-13
Page
4
Code
01
REVISION 39
CAUTION ANNUNCIATORS
The amber caution annunciators are described as follows:
1 - FD FAIL
− If a flight director fails, FD FAIL is displayed in the lateral mode
annunciator box, and the flight director mode annunciators and
command cue are removed.
2 - AP/YD
− Autopilot and yaw damper caution annunciators. AP/YD are
displayed above the attitude sphere, below the flight director
mode annunciators. Refer to PFD Additional Annunciators for
more information.
3 - GND PROX
− When the EGPWS indicates a caution conditions GND PROX is
displayed in the upper right of the ADI sphere. The following
aural alerts are considered cautionary:
− “SINK RATE”;
− “DON’T SINK”;
− “TOO LOW TERRAIN”;
− “TOO LOW FLAPS”;
− “TOO LOW GEAR”;
− “GLIDESLOPE”;
− “CAUTION TERRAIN”;
− “CAUTION OBSTACLE”.
4 - MSG
− The FMS message annunciator (MSG) is displayed to the upper
right of the HSI compass. The MSG annunciator flashes until
the FMS message is cleared from the scratchpad.
5 - TCAS FAIL
− Amber TCAS FAIL caution annunciator is displayed to the
upper left on the vertical speed display.
6 - DISTANCE DISPLAY FAILURES
− If the DME or FMS distance signal fails, the digital readout is
replaced with amber dashes.
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