Automatic Flight Flashcards
Autothrottle is normally controlled by what system?
Left FMC
How can the Autopilot be disengaged?
Either yoke A/P disengage switch,
Yoke electric trim activation,
A/P disengage bar,
Deselect engaged autopilot on MCP,
Control column force override,
TOGA
–Single A/P below 2,000’ OR flaps ext OR G/S capture
–Dual A/P after touchdown
Also,
Loss of respective hydraulic system pressure
L/R IRS failure or FAULT
STAB TRIM AUTOPILOT to CUTOUT
With both FCC MA lights illuminated, how are the F/Ds being operated?
Independently by respective FCC
What does an amber CWS R above the attitude indicator mean?
Control wheel steering ROLL mode
Holds bank angle between 6* and 30*
Hold heading if bank angle < 6*
What are the three Flight Mode Annunciators (FMAs) left to right?
Auto-throttle, Roll mode, Pitch mode
When will LNAV automatically disconnect?
End of active route
Route discontinuity
Intercepting approach course in VOR/LOC or APP
Selecting HDG SEL
Loss of capture criteria (3nm, or <90* and intercept prior to waypoint)
What happens when deviating by 200’ or more from selected altitude?
Altitude alerter tone, and
Altitude box flashes amber
Inhibited while G/S captured or Flaps 25 or greater
If you are >3nm from active route, how will LNAV engage?
Intercept course of 90* or less, and
Must intercept course prior to active waypoint
Which FMA indicates power is removed from the A/T servos during takeoff?
THR HOLD
Occurs at 84 knots
What is the initial TO/GA pitch attitude for a go-around? Single-engine?
15 degrees two-engines
13 degrees single-engine
On a go-around with the A/T armed, thrust levels advance to? Second click?
First click – reduced thrust go-around (1,000 to 2,000 fpm)
Second click – Full G/A N1 limit
During windshear on T/O or G/A, what does the F/D pitch command?
Target speed to +600fpm, then
15* until approximately stick shaker, then
Pitch which results in intermittent stick shaker, then
Increasing above +600fpm back to target speed
How do you exit APP mode after localizer/glideslope capture?
TO/GA, or
Retune navigation radios, or
Disengage autopilot and recycle flight directors
What does selecting the non-operating autopilot do?
Engages the other, selected autopilot
Except during APP mode, then dual A/P approach
What mode will the A/T be in during a V/S descent?
MCP SPD
What does the STAB OUT OF TRIM (amber) light indicate?
Autopilot is not trimming the stabilizer properly
With the pitch mode in MCP SPD, how is aircraft speed controlled?
Adjusting target speed bug in MCP
Aircraft pitches for new speed
Thrust remains at idle or N1 (descent/climb respectively)
Bank angle selectors sets maximum bank angle for which roll modes?
HDG SEL
VOR
What is the MCP IAS/MACH display blank?
VNAV engaged (not in SPD INTV), or
A/T engaged in FMC SPD, or
2 Engine go-around
When is minimum speed reversion not available?
VNAV path in a level segment, or
A/T is OFF in ALT HOLD or G/S capture, or
VNAV or V/S flaps 15-40