Where do the Flight Control Computers process inputs from?
- Mode Control Panel (MCP)
- Flight Management Computers (FMCs)
- Auto Throttle System
- Control column/ Wheel position
- Autopilot actuator position
What do the FCCs provide commands to?
- Speed trim
- Mach trim
- Altitude Alert
- Autopilot disengage warning
What speed will SPEED hold mode with the A/T system engaged?
The speed set in the airspeed window
What is the indication if the speed selected is greater than the overspeed limit?
A flashing “8” is displayed next to the speed
What is the indication if the speed selected is lower than the minimum speed?
A flashing “A” is displayed next to the speed
What does pressing the N1 button do?
Commands the A/T to hold a specific N1 setting
What does the Change Over (C/O) button do?
Manually toggles the speed control between indicated airspeed and mach number
What altitude does the speed control automatically transition from indicated airspeed and Mach?
26,000
What does the SPD INTV button do?
Controls the speed while operating in VNAV
What does the LNAV button do?
Commands the auto flight system to intercept and track an active route programmed in the FMC
What does the LVL CHG button do?
Commands the auto flight system to climb or descend to the selected altitude
What does the VNAV button do?
Commands the auto flight system to follow the vertical guidance provided by the FMC
What does the ALT INTV switch do?
Allows modification to altitude constraints and initiates climbs and descents when operating in VNAV
What is CWS mode?
Control Wheel Steering mode
After the APP light extinguishes, how can you disengage the APP mode?
- Pressing a TO/GA switch
- Disengaging the auto pilot and turning off both flight directors
- Selecting a different frequency in one of the VHF NAV receivers
When can you no longer de-select a flight mode on the MCP?
When the light is extinguished
How can you disengage all flight modes?
- Disengaging the autopilot
- Turning both FDs off
How is the auto-throttle system engaged?
- Manually selected the desired mode on the MCP
- Allowing the auto flight system to select the proper mode
- Pressing either one of the TO/GA switches
What A/T mode disengages the servo motors?
- ARM
- THR HLD
What is the minimum altitude for autopilot engagement?
1,000 AGL
When will the autopilot automatically disengage?
- Loss of IRU
- Loss of hydraulic pressure
- Electric failure
- Sensor failure
The A/P disconnect light illuminates steady red for the following conditions:
- ALT ACQ inhibited during A/P go-around if not trimmed for single A/P operation
- When the disengage light test is held in position 2, or when the automatic ground system test fails
