Auto Flight Flashcards by rob harris

How does the autopilot move the flight control surfaces?

Fly-by-wire

aileron, flaperons, spoilers, elevators

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What is the progression in communication from the autopilot

Autopilot
Primary flight computers PFC’s (Autopilot commands to flight commands)
Actuator Control Electronics ACE’s
Actuators

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Where does the feedback to the flight controls come from?

Backdrive is generated by the PFC to the backdrive actuators

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What are the Auto Throttle Modes

HOLD
IDLE
SPD - Speed
THR - Thrust
THR REF - Thrust Reference

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What approaches have autoland capability

ILS and GLS

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What is IAN

Integrated Approach Navigation

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What is the MCP

Mode control panel

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What do you see when you test the F/D switch on the preflight?

TO/GA | TO/GA

FLT DIR

Pitch 8 deg
Roll centered

(Green on both the FMC and the HUD)

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What indicates a mode change?

Green box around mode for 10 sec

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what is FLCH

Flight level change

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What is the min alt for Vnav mode?

> 400 AGL

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At what altitude does the APP mode not disengage by selecting another mode

1,500 AGL (RA)

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What are the default modes for Roll and Pitch

Roll - HDG HLD or TRK HLD

Pitch - V/S or FPA

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What is the only way to disengage the LOC/GS (APP) below 1,500 ft

disconnecting the AP and turn off the FD

or TO/GA switch

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What do yo set in the MCP during the preflight

V2 speed
DG after T/O
ALT

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What can be UL

airspeed
DG
ALT

can be uplinked

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What moves the UL to the upper window

XFR - Transfer

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What is the ASA

AFDS Status Annunciator

displayed just above the attitude indicator
FLT DIR, A/P, LAND 3, LAND 2, NO AUTOLAND

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What does each ASA mode mean

FLT DIR - FD and A/P engaged
A/P
LAND 3 - Full autoland even with a single fault
LAND 2 - Autoland even with a single fault
NO AUTOLAND - unable to make a autoland

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What are ways to disconnect the A/P

button on Yoke
bar on MCP
force on control column
Rudder pedals force during LAND 3 or 2

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How is a degradation of a Mode indicated

a Yellow line through the affected mode

removal of the respective steering bar on FD

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What is the difference between LAND 3 and LAND 2

LAND 2 allows a level of redundancy that a single fault cannot cause a significant deviation from the flight path

LAND 3 allows a level of redundancy that a single fault cannot prevent the A/P from maning and automatic landing

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When are EICAS aural alerts inhibited

On T/O below 200 ft

all messages not affecting safety of flight

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On the Ground, during preflight, when either flight director switch is selected on …

FLT DIR and steering bars are displayed on the onside PFD and TO/GA is displayed on the FMA roll and pitch windows on both PFD’s

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Can the A/P be engaged on the ground with flaps extended

How do we control the A/T

MCP and CDU (Control Display Unit) CDU - Lower MFD - CDU

What are the 4 ways to engage the A/T

TO/GA < 50 kts with flap > 0 A/T switch >400 ft FLCH - in flight VNAV - in flight

What does it mean if you see L SPD | HDG SEL | ALT in the FMA

L SPD only Left A/T is engaged at speed mode

When will the A/T automatically engage

A/P disengaged and FD are turned off A/P or FD on and in VNAV, FPA, V/S, ALT, G/S and: speed is less than FMC for 1 sec thrust is less than the Ref Thrust

When will A/T not automatically engage?

Pitch mode - FLCH or TO/GA < 400 ft on T/O < 100 ft on LDG

at slow speeds what will cause the A/T to increase the thrust?

Vma or MCP speed set which ever is greater

After manual A/T disengagement how can you reselect?

A/T FLCH VNAV TO/GA

When will A/T disconnect occur

Reverse raised to reverse idle over ridden during manual landing Fault both eng shut down

THR REF

Used in T/O and VNAV climbs REF - the set limit in EICAS

THR

Used in FLCH and TO/GA Used to maintain vertical speed required by the pitch mode

SPD

Used in Level flight | targets the speed set on the MCP will not exceed VMO, MMO, Flap, Slat, Gear speeds

IDLE

Used in VNAV PTH descent IDLE changes to HOLD when thrust levers reach idle

When in VNAV mode where do we change the speed

CDU

How do you quickly override the VNAV speed set in the CDU

push the Speed selector button and the IAS speed will appear, adjust as required (pressing it again will blank the IAS and return contorl to the VNAV and CDU)

During landing automatic or manual landing IDLE power will be set Aprox...

25 ft

Which autothrottle mode with not reposition the thrust levers after the pilot has manually moved them?

HOLD

If the FD switches were missing during preflight when can the TO/GA be engaged

>80 kts by pressing the TO/GA | Below 50 kts the only function of TO/GA switches is A/T engagement

What is the target of TO/GA just after lift off

< 5 ft - Wings Level | > 5 ft - Ground Track

When does HUD guidance become active?

Runway centerline | HDG within 45 deg

When is TO/GA armed in flight?

Leading edge slats extended G/S captured (indication on the EICAS GAin green above N1)

When can the LNAV and VNAV be armed for T/O and when is it engaged?

LNAV Before T/O 50 ft VNAV 400 ft

What is FAC on the LOC/FAC button

Final Approach Course For Non ILS approaches

What is the max LOC/FAC intercept

120 deg same for B/CRS

When does ROLLOUT mode automatically arm? And Engages?

< 1,500 ft Autoland 2 or 3 annunciated engages with WOW

How do you turn on the TO/GA mode on the ground?

turn on either FD Switches

What conditions will arm the TO/GA mode in flight

Slats extended or G/S capture which ever comes first

How far away will the LNAV capture the active leg

2.5 nm

in windshear what does TO/GA target?

15 deg nose up or just below the pitch limiter which ever is lower

on eng fail after T/O what does TO/GA target

before lift off - V2 or rotation speed which is grater after lift off - V2 or current airspeed which ever is greater

What will change the target airspeed during windshear

if current speed is above selected speed for > 5 sec it becomes the new target (up to target +25)

What happens to the modes if you hit TO/GA after lift off

clears: LNAV VNAV A/T goes to THR REF

What rate of climb does the TO/GA pitch mode require

2,000 fpm

In a GA what does a 2nd push of the TO/GA do

changes A/T mode to THR REF and FULL power is available removes LNAV

AT TO/GA level off what speed is targeted after level off

Flap placard - 5 kts 250 kts if flaps up target speed in IAS if set after TO/GA pressed

What are the 3 VNAV modes

VNAV SPD VNAV PTH VNAV ALT

When does the MCP altitude not change the FMC altitude?

50 nm to TOD

What are the V/S and FPA limits

- 8,000 to + 6000 fpm | - 9.9 to + 9.9

What does the Altitude HOLD switch do?

Hold present altitude

What is Flare mode

Mode available in LAND 2 or 3 brings to a smooth and automatic land and touchdown Armed 1,500 ft displayed on FMA under G/S engaged at 50 ft thrust to idle at 25 ft (IDLE in FMA)

What is Autopilot Flight Envelope Protection and what are its indications?

protection against: Stall Overspeed Bank Angle (EICAS - AUTOPILOT, yellow line through Vertical and lateral modes)

That is the A/T thrust mode after the first push of the TO/GA switch during the GA

THR