Error Code 5000; Error Code 5005; Ap Fail Indication; Operational Notices - Honeywell PRIMUS 1000 Pilot's Manual

R
PRIMUS 1000 Integrated Avionics System

Error Code 5000

An error code 5000 means that the PC cannot communicate with the
IAC. When error 5000 is received, first try the steps listed in Table 7–15.

Error Code 5005

An error code 5005 usually occurs when the IAC has never been
programmed with a checklist before. Selecting RETRY usually enables
the checklist loading program to continue.

AP Fail Indication

The AP disconnect switch is on the control wheel. In addition to
disconnecting the autopilot, this switch also resets monitor–induced AP
disconnects. If the autopilot disconnects because a monitor in the pitch,
roll, or yaw axis senses control pressure (for example, a pilot's feet on
the rudder when the yaw damper tries to execute a yaw damper
function), the autopilot disconnects and AP FAIL appears on the PFD.
To reactivate the autopilot, push the AP disconnect switch for two
seconds to reset the monitors, and the autopilot can then be
re–engaged.

OPERATIONAL NOTICES

Overpowering Control Surfaces with Autopilot

and/or Yaw Damper Engaged

CAUTION
RESTRAINING OR OVERPOWERING PITCH, ROLL, OR YAW
SERVOS RESULTS IN A MONITOR TRIP FOLLOWED BY AN
AP/YD DISCONNECT.
Digital autopilots incorporate performance monitors that continually
compare servo commands to servo responses. For example, when a
servo command is issued, the monitor ensures the servo is moving in
the proper direction and at the proper rate. When crewmembers
attempt to assist the AP/YD, the performance monitors sense an
improper servo response and disconnect the AP/YD. The AP FAIL
message appears on the PFD.
A28–1146–134
Troubleshooting
REV 1 Jan/03 7-29