Airplane Flight Manual Supplement

Hawker Beechcraft C90A and C90GT King Air 190-00682-02 Rev. C
Page 22 of 95
ROLL AXIS FAILURE
(Red annunciator on PFD)
• Indicates a failure of the roll axis of the autopilot. The autopilot will be inoperative.
YAW AXIS FAILURE
(Red annunciator on PFD)
• Indicates a failure of the yaw axis of the autopilot. The pitch and roll axes of the autopilot will
remain operative. DO NOT pull and reset the AFCS SERVOS circuit breaker. Resetting the
AFCS SERVOS circuit breaker could cause the entire autopilot to become inoperative when no
fault exists in the pitch and roll axes.
PITCH TRIM FAILURE
(Red annunciator on PFD)
1. CONTROL WHEEL.....................................................................................................GRIP FIRMLY
2. AP/YD DISC / TRIM INTRPT Button ............................................................PRESS and RELEASE
(Be prepared for possible high elevator control forces)
3. Elevator Trim...................................................... AS REQUIRED USING ELEVATOR TAB WHEEL
If Red
Message Clears
• Autopilot ....................................................................................................................... RE-ENGAGE
If Red
Message Remains
4. Autopilot ........................................................................................................ DO NOT RE-ENGAGE
5. Elevator Trim.......................................................... CONTINUE TO USE ELEVATOR TAB WHEEL
AUTOPILOT PRE-FLIGHT TEST FAIL
(Red annunciator on PFD)
• Indicates the AFCS system failed the automatic Pre-Flight test. The autopilot, yaw damper and
electric elevator trim is inoperative. Flight Director should still function.