Autoflight Flashcards
What does a flashing 8 mean in the airspeed window?
Selected speed is greater than the over speed limit
What does a flashing A mean in the speed window?
Selected speed is less than the minimum speed
The speed control on the MCP automatically changes to Mach above what altitude?
26,000 ft
What does a lit up button on the MCP mean?
That the mode can be deselected.
It does NOT mean a specific mode is active.
After the APP light extinguished on an approach, how can the APP mode be disengaged?
Pushing TOGA
Disengaging the autopilot by turning off both FDs
Selecting a different frequency in one of the VHF Nav receivers
The autothrottle servos are de-energized in what two modes? Allowing the pilot to manually adjust thrust lever position
THR HOLD
ARM
What does a white A/T LIMIT above the engine N1 indicators mean?
The FMC is not providing limits to the autothrottle system
Or
The system is using a degraded N1 thirst limit from the EEC
The three columns on the FMA represent what? (In order L to R)
Auto throttle mode
Roll mode
Pitch mode
What does FD indicate on the AFDS?
That the flight director is turned on, but the autopilot is either off or in CWS mode
What does an amber CWS R or CWS P in amber below the FMA mean?
Control wheel steering is engaged in the roll or pitch mode respectively
MA (master) displays above which flight director?
Which ever is selected in first (with no autopilot engaged)
Which ever FCC is controlling the autopilot (autopilot on)
An amber FD displayed on the PFD means what?
There is a fault in the FD system. Command bars should also be missing
Flight control computer A/B is selected for use how?
Whichever autopilot master is turned on first
Minimum altitude for autopilot engagement?
1000 ft AGL
What happens if you press/disengage an active autopilot mode?
The aircraft reverts to CWS in that mode (pitch/roll), CWS P/R illuminates on the PFD, A/P disengage light flashes amber, that pitch or roll mode must be manually controlled
A/P engagement is only allowed if two pilot controlled conditions are met, what are they?
No force is being applied to the control wheel
Stabilizer trim AUTOPILOT cutout switch is in the NORMAL position
What happens if you press the other autopilot CMD switch while an autopilot is active?
The autopilot simply transfers to the other FCC. No disengagement occurs
T/F: Aileron trim can bd used with the autopilot engaged
FALSE
THE USE OF AILERON TRIM IS PROHIBITED ANY TIME THE AUTOPILOT IS ENGAGED
What are all the ways to disengage the autopilot?
Pushing the autopilot disconnect on the control wheel or MCP (bar down)
Pushing the illuminated CMD mode on the MCP
Activating either pilots control wheel trim switch
Moving the STAB TRIM AUTOPILOT cutout switch to CUTOUT
Pushing TOGA with AP engaged below 2,000 ft RA
Pushing TOGA with AP engaged above 2,000 ft RA with flaps not UP or G/S engaged
What four failures cause autopilot disengagement?
Either L or R IRU fails (fault light illuminates)
The respective hydraulic system pressure is lost
Loss of electrical power
Loss of a sensor input which prevents proper autopilot operation
A/P disengage light illuminates steady red for what two conditions?
Altitude acquire mode inhibited during A/P go around if not trimmed for single A/P operation
When the disengage light test switch is held in position 2, or when the automatic ground system test fails
What does the STAB OUT OF TRIM light mean?
Autopilot is not trimming the stabilizer properly. Only can illuminate when the autopilot is engaged
During takeoff at ___ kts the auto throttle switches from ____ mode to ____ mode. This does what to the autothrottles?
84 kts
N1 mode to THR HLD mode
This disengages the servos and the crew can manually adjust the thrust levers if needed
As the autothrottles reduce thrust for an idle descent, ____ is displayed on the FMA.
Once the thrust levers reach the idle position ____ replaces ____ on the FMA.
RETARD
ARM replaces RETARD
When you press the TOGA button for a go around once, what happens? Twice?
First press commands a reduced thrust go around to achieve between 1,000-2,000 ft/min climb.
The second ores commands a max thrust go around
Section 7
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