Airplane Flight Manual Supplement

Hawker Beechcraft C90A and C90GT King Air 190-00682-02 Rev. D
Page 42 of 117
FLASHING AMBER MODE ANNUNCIATION
NOTE
Abnormal mode transitions (those not initiated by the pilot or by normal sequencing of the AFCS)
will be annunciated by flashing the disengaged mode in amber on the PFD. Upon loss of a
selected mode, the system will revert to the default mode for the affected axis, either ROL or PIT.
After 10 seconds, the new mode (PIT or ROL) will be annunciated in green.
Loss of selected vertical mode (FLC, VS, VPTH, ALT, GS, GP)
1. Autopilot mode controls.......................................................SELECT ANOTHER VERTICAL MODE
If on an instrument approach, disconnect autopilot and continue manually or execute missed approach:
2. AP/YD DISC / TRIM INTRPT Button ............................................................PRESS and RELEASE
Loss of selected lateral mode (HDG, VOR, GPS, LOC, VAPP, BC):
1. Autopilot mode controls........................ ............................... SELECT ANOTHER LATERAL MODE
If on an instrument approach, disconnect autopilot and continue manually or execute missed approach:
2. AP/YD DISC / TRIM INTRPT Button ............................................................PRESS and RELEASE
YAW DAMPER AUTOMATIC DISCONNECT (Amber Flashing ‘YD’)
Flashing amber ‘YD’ in flight indicates that yaw damper has disconnected. If the disconnect was
not pilot initiated, the yaw servo has failed. Do not reset the AFCS SERVOS circuit breaker in
an effort to reset the yaw servo. The autopilot pitch and roll modes will continue to function
without the yaw damper engaged.