737 Automatic Flight

Question 1

Normally, the A/T is controlled automatically by which system to fly an optimized lateral and vertical flight path through climb, cruise and descent?

Answer 1

LEFT FMC

Question 2

How can the A\P be disengaged?

Answer 2

Pushing either A/P disengage switch
Engaging electric trim on yoke
Pushing CMD button
Column or wheel force override
Pushing the A/P disengage bar down …also
TO/GA W/ single channel approach engaged below 2,000
or any alt with flaps extended and GS engaged

Question 3

With both FCC MA lights illuminated, how are the F/Ds being operated?

Answer 3

Independently - each FCC is controlling modes for related F/D Used during takeoff and during approaches

Question 4

What does an amber CWS R above the attitude indicator mean?

Answer 4

ROLL mode - will hold bank angle - we do not use CWS

Will show above attitude indicator

Question 5

From left to right, what are the three flight mode annunciations displayed above the attitude indicator?

Answer 5

L to R: AUTOTHROTTLE - ROLL - PITCH

Question 6

When will LNAV automatically disconnect?

Answer 6

Reaching end of route or discontinuity or not a valid TO waypoint
Intercepting an approach in APP or VOR/LOC
HDG mode
Loss of capture criteria (See engagement criteria, 3 nm, 90 deg. etc)

Question 7

What happens when deviating by 200ft or more from the selected altitude?

Answer 7

Momentary ALT tone, flashing ALT box

Question 8

If you are outside of 3NM of the active route segment, how will LNAV engage?

Answer 8

Intercept course of 90 degrees or less

Going to intercept the route PRIOR to waypoint

Question 9

Which FMA annunciation indicates that power has been removed from the auto throttle servos during takeoff?

Answer 9

(green) THR HOLD will occur at 84 knots

Question 10

What is the initial pitch attitude that the F/D will command after TO/GA is selected on a two- engine go around?

Answer 10

15 degrees nose up

Question 11

What is the initial pitch attitude flight director will comand on Single-engine go- around?

Answer 11

13 degrees

Question 12

On a go-around with the auto throttle armed, after the second push of either TO/GA switch, the thrust levers advance to ______.

Answer 12

Full G/A N1 Limit from EEC, provided to FMC, provided to autothrottles (bucking bronco mode) One click = reduced G/A mode - roughly 1000-2000fpm

Question 13

If windshear is encountered during F/D takeoff or go around, the F/D pitch command bar provides commands to maintain “_____ _____” until vertical decreases to approximately +600 fpm

Answer 13

target speed, then it commands 15 degrees nose up, then respects the PLIs follow the flight director

Question 14

After localizer and glideslope capture, what will exit the APP mode?

Answer 14

TO/GA or
Cycling FDs or
Swapping nav frequencies

Question 15

Except for when APP mode is engaged, selecting the non-operating A/P will do what?

Answer 15

Engages the other A/P (Cannot have two at once unless in APP mode)

Question 16

What mode will the A/T be in during a V/S descent?

Answer 16

MCP SPD Autothrottles try to maintain speed in MCP window at selected VS rate, but its not guaranteed to hold that speed

Question 17

What does the STAB OUT OF TRIM (amber) light indicate?

Answer 17

(amber) STAB OUT OF TRIM = the autopilot is not trimming the stabilizer properly A/P will stay engaged

Question 18

With the pitch mode in MCP SPD, how is aircraft speed controlled?

Answer 18

Manually with the speed knob on MCP

Question 19

The bank angle selector sets maximum bank angle for AFDS operation in which roll modes?

Answer 19

HDG SEL VOR/LOC