Honeywell SPZ-8000 - Combined Vertical and Lateral Mode Problems; Flight Fault Summary; Flight Fault Test Initialization

SPZ--8000 Digital Integrated Flight Control System
A28--1146--055
REV 2
Troubleshooting
9-8
Combined Vertical and Lateral Mode Problems
Refer to Table 9--4 for combined vertical and lateral mode problems.
Mode
Problems
D Mode logic problems D Modes won’t engage
D Modes won’t clear
D Autopilot problems D Won’t engage
D Doesn’t follow commands
D Stick bump
D Stick buzz
Combined V ertical and Lateral Mode Problems
Table 9- -4
FLIGHTFAULTSUMMARY
The dual flight guidance system has built--in diagnostics that are used
to determine the cause of in--flight AFCS failures. The FLIGHT F AULT
SUMMARY mode is initiated through the ground maintenance switch
located in the copilot’s side console. The ground maintenance test
mode can only be entered with the aircraft on the ground. If an AFCS
failure occurs in flight, the ground maintenance test mode should be
entered after landing in order to retrieve the FLIGHT FAULT
SUMMARY data. When the test is initiated, the advisory display is as
shown in Figure 9--3.
Flight Fault Test Initialization
Figure 9--3