FedEx 767 Autoflight Systems - 2

Question 1

FedEx 767 - Autoflight

How can you disengage all modes of the autoflight system?

Answer 1

Disengage the Autopilot and turning both Flight Directors off.

Question 2

FedEx 767 - Autoflight

What controls each of three separate autopilot systems?

Answer 2

Each autopilot system is controlled by a separate Flight Control Computer through autopilot servos.

Question 3

Once captured, how can you disengage the autopilot from the Localizer or ILS?

Answer 3

Disengage the Autopilot and turning both Flight Directors off.

Or….

Pressing the Go Around (GA) button

Question 4

FedEx 767 - Autoflight

What is required for an autopilot to be engaged?

Answer 4

• Two operational Flight Control Computers (FCCs).

- Pressing one A/P Engage Switch.

Question 5

FedEx 767 - Autoflight

Two ways to disengage the Autopilot:

Answer 5

• Pressing the A/P Disengage Button (on the yoke)

- Pressing the A/P Disengage Bar (on the MCP)

Question 6

FedEx 767 - Autoflight

What to ways can you make the Flight Director Steering Indicators (Flight Director Bars) appear?

Answer 6

• Turn on either Flight Director Switch

Or…

• Press the GA Switch when…
  – Airplane > 80 kts
  – Flaps are not retracted
  (Can then be turned of by recycling a
  FD switch on/off.

Question 7

FedEx 767 - Autoflight

Describe “LAND 3”:

Answer 7

• Three Autopilots engaged and operating normally for an automatic landing. (FAIL OPERATIONAL)

The Autopilot system level of redundancy is such that a single fault cannot prevent the autopilot system from making an automatic landing or fail operation.

Question 8

FedEx 767 - Autoflight

Describe “LAND 2 / NO LAND 3”:

Answer 8

• AFDS redundancy is reduced
• The level of redundancy is such that a single fault cannot cause significant deviation from the flight path or fail passive.

Question 9

FedEx 767 - Autoflight

Describe “NO AUTOLAND”:

Answer 9

• A fault condition exists which results in a “LAND 2” condition.

Question 10

FedEx 767 - Autoflight

At what altitude will the Autoland Status not change?

Answer 10

Below 200’ radio altitude, the ASA will not change, except to “NO AUTOLAND” to indicate the AFDS is unable to make an auto-landing.

Question 11

FedEx 767 - Autoflight

What are the Autothrottle Modes on the FMA?

Answer 11

A/T Modes on the FMA:

• SPD
  – Control Thrust to maintain Speed
• IDLE
  – Is reducing or has reduced to idle
  – May engage in a VNAV descent… will after FLARE
• THR HOLD
  – Thrust levers remain in existing position
  or where manually placed
• N1
  – Autothrottle controls to the selected N1 thrust.
• FLCH
  – Autothrottle controlling to a max thrust during
  climb, and to a minimum thrust during descent.
• GA
  – Autothrottle controlling to a max thrust to maintain
  a cilmb rate of >/= 2000 fpm. If both FDs and AP
  are off, autothrottles control to a GA thrust subject
  to flap and VMO limit speeds.

Question 12

FedEx 767 - Autoflight

Explain A/T “SPD” mode on the FMA:

Answer 12

• SPD

- - Control Thrust to maintain Speed

Question 13

FedEx 767 - Autoflight

Explain A/T “IDLE” mode on the FMA:

Answer 13

• IDLE
  
  • • Is reducing or has reduced to idle
  • • May engage in a VNAV descent… will after FLARE

Question 14

FedEx 767 - Autoflight

Explain A/T “THR HOLD” mode on the FMA:

Answer 14

• THR HOLD
  – Thrust levers remain in existing position
  or where manually placed

Question 15

FedEx 767 - Autoflight

Explain A/T “N1” mode on the FMA:

Answer 15

• N1

- - Autothrottle controls to the selected N1 thrust.

Question 16

FedEx 767 - Autoflight

Explain A/T “FLCH” mode on the FMA:

Answer 16

• FLCH
  – Autothrottle controlling to a max thrust during
  climb, and to a minimum thrust during descent.

Question 17

FedEx 767 - Autoflight

Explain A/T “GA” mode on the FMA:

Answer 17

• GA
  – Autothrottle controlling to a max thrust to maintain
  a cilmb rate of >/= 2000 fpm. If both FDs and AP
  are off, autothrottles control to a GA thrust subject
  to flap and VMO limit speeds.

Question 18

FedEx 767 - Autoflight

What are the Roll Modes on the FMA?

Answer 18

Roll modes on the FMA:

• LNAV
  – Activated when in position to turn onto the
  active route leg.
  – Immediate activation if within 2.5 miles
  of the active leg.
• HDG SEL
  – The HDG SEL button was pressed on the MCP
• HDG HOLD
  – When turning, selected heading is held upon
  reaching
• LOC
  – Localizer is captured when within range and
  within 120 degrees of localizer course.
• B/CRS
  – Similar to LOC, except tracks on the inbound
  course
• TO
  – Annunciates after switching a FD switch on
  after both FD switches were off.
  – TO roll and pitch guidance become active
  upon liftoff
• GA
  – Arms in flight with flaps out of “UP” or with
  glidscope capture
  – No annunciation for a GA armed in flight.
  (although the ref thrust changes to
  “GA” (N1 guage)
• ROLLOUT
  – Displayed below 1500’ radio altitude
  – Activates at 5’ radio altitude
  – After touchdown, AFDS uses rudder and
  nosewheel steering to maintain the airplane
  on the LOC centerline

Question 19

FedEx 767 - Autoflight

Explain Roll mode “LNAV” on the FMA:

Answer 19

• LNAV
  – Activated when in position to turn onto the
  active route leg.
  – Immediate activation if within 2.5 miles
  of the active leg.

Question 20

FedEx 767 - Autoflight

Explain Roll mode “HDG SEL” on the FMA:

Answer 20

• HDG SEL

- - The HDG SEL button was pressed on the MCP

Question 21

FedEx 767 - Autoflight

Explain Roll mode “HDG HOLD” on the FMA:

Answer 21

• HDG HOLD
  – When turning, selected heading is held upon
  reaching

Question 22

FedEx 767 - Autoflight

Explain Roll mode “LOC” on the FMA:

Answer 22

• LOC
  – Localizer is captured when within range and
  within 120 degrees of localizer course.

Question 23

FedEx 767 - Autoflight

Explain Roll mode “B/CRS” on the FMA

Answer 23

• B/CRS
  – Similar to LOC, except tracks on the inbound
  course

Question 24

FedEx 767 - Autoflight

Explain Roll mode “TO” on the FMA:

Answer 24

• TO
  – Annunciates after switching a FD switch on
  after both FD switches were off.
  – TO roll and pitch guidance become active
  upon liftoff

Question 25

FedEx 767 - Autoflight Explain Roll mode "GA" on the FMA:

Answer 25

- GA -- Arms in flight with flaps out of "UP" or with glidscope capture -- No annunciation for a GA armed in flight. (although the ref thrust changes to "GA" (N1 guage)

Question 26

FedEx 767 - Autoflight Explain Roll mode "ROLLOUT" on the FMA:

Answer 26

- ROLLOUT -- Displayed below 1500' radio altitude -- Activates at 5' radio altitude -- After touchdown, AFDS uses rudder and nosewheel steering to maintain the airplane on the LOC centerline

Question 27

FedEx 767 - Autoflight What are the Pitch modes on the FMA?

Answer 27

FMA Pitch modes: - TO - GA - VNAV SPD - VNAV PTH - VNAV ALT - V/S - ALT CAP - ALT HOLD - G/S - FLARE

Question 28

FedEx 767 - Autoflight Explain Pitch mode "TO" on the FMA:

Answer 28

- Activated on the ground by turning either FD switch on. - Provides a 8 degree pitch on the FD pitch bar. - After T/O, AFDS commands a pitch attitude to maintain greater of V2 + 15 or liftoff speed + 15. -- If current airspeed remains above target speed for 5 seconds, target resets to current speed, up to a max of V2 + 25 kts.

Question 29

FedEx 767 - Autoflight Explain Pitch mode "GA" on the FMA:

Answer 29

- After reference thrust changes from T/O to CLIMB, GA arms whenever flaps are out of "UP", or the glide slope captures. - GA displays on the Primary EICAS display N1 area. - When a GA is initiated, the target speed is the IAS/MACH window speed or current airspeed, whichever is higher. - If speed increases and remains above the initial target airspeed for 5 seconds, target airspeed resets to current airspeed to a max of IAS/MACH window + 25 kts. - If airspeed at initiationo f go-around is > IAS/MACH window + 25 kts, that speed is maintained.

Question 30

FedEx 767 - Autoflight Explain Pitch mode "VNAV SPD" (in white) on the FMA:

Answer 30

When initially pushing the VNAV switch on the MCP, VNAV provides pitch commands to maintain the FMC computed airspeed path.

Question 31

FedEx 767 - Autoflight Explain Pitch mode "VNAV SPD" (in green) on the FMA:

Answer 31

- When VNAV SPD is green, (active) the AFDS maintains the CDU Climb/Descent speed or the speed displayed on the PFD.

Question 32

FedEx 767 - Autoflight Explain Pitch mode "VNAV PTH" on the FMA:

Answer 32

- The AFDS maintains FMC altitude or descent path using pitch commands. For unintered headwinds, thrust may increase to maintain the VNAV path.

Question 33

FedEx 767 - Autoflight Explain Pitch mode "VNAV ALT" on the FMA:

Answer 33

- VNAV ALT displays when there is a conflict between the MPC selected altitude and the descent profile altitude. Such as, when you cross the descent point and the MCP altitude is still set at cruise altitude.

Question 34

FedEx 767 - Autoflight Explain Pitch mode "VS" on the FMA:

Answer 34

Pressing the V/S button opens the V/S window, as well as the IAS/MACH window.

Question 35

FedEx 767 - Autoflight Explain Pitch mode "ALT CAP" on the FMA:

Answer 35

A transition interval change when reaching MCP altitude from V/S, FLCH, or VNAV climb or descent.

Question 36

FedEx 767 - Autoflight Explain Pitch mode "G/S" (green) on the FMA:

Answer 36

The AFDS is following the ILS Glide Slope.

Question 37

FedEx 767 - Autoflight Explain Pitch mode "FLARE" on the FMA:

Answer 37

Armed with autoland. Displays below 1500' radio altitude. Activates during autoland at 45' radio altitude. Deactivates at touchdown, allowing the nose to smoothly lower to the runway.

Question 38

FedEx 767 - Autoflight Explain Pitch mode "FLARE" on the FMA:

Answer 38

- Armed with autoland. (When "Land 3" or "Land 2" annunciates.) - Displays below 1500' radio altitude. - Activates during autoland at 45' radio altitude. - Autothrottle retards to Idle at 15' radio altitude. - Idle replaces speed autothrottle mode annunciation. - Wings leveled when rollout mode engaged. - APs start lowering nose wheel to runway at five feet radio altitude plus two seconds with pitch attitude less than two degrees. - Deactivates at touchdown, allowing the nose to smoothly lower to the runway.

Question 39

FedEx 767 - Autoflight (T/F): TO is a Flight Directory only function and can only be engaged on the ground.

Answer 39

True

Question 40

FedEx 767 - Autoflight How do you know your Flight Director and TO mode have been turned on/activated?

Answer 40

TO TO in the Pitch and Roll windows of the FMA and "FLT DIR" displayed just below the FMA on the PFD.

Question 41

FedEx 767 - Autoflight Describe the displays and TO mode process during takeoff, prior to 80 knots:

Answer 41

TO mode, prior to 80 knots: - Pitch command = 8 degrees up. - Roll command = wings level - Autothrottle engaged by Capt pressing THR switch. - Thrust levers auto advance to selected TO power. - FMAs display: - - N1 for Autothrottle mode - - TO for Pitch mode - - TO for Roll mode

Question 42

FedEx 767 - Autoflight What happens in TO mode at 80 knots?

Answer 42

Autothrottle mode annunciation changes from "N1" to "THR HLD" on the FMA.

Question 43

FedEx 767 - Autoflight What transpires during lift-off in TO mode?

Answer 43

TO mode at lift-off: - Pitch command greater of V2+15 or liftoff speed +15. - If Eng Fail on ground, target speed is V2 or airspeed at liftoff, whichever is greater. - Roll command maintains ground track.

Question 44

FedEx 767 - Autoflight What transpires after lift-off in TO mode?

Answer 44

TO mode after lift-off: - FD TO modes terminated by: -- Engaging an A/P in CMD or...... -- Selecting any other pitch mode - A/T remains in THR HLD until one of these: -- A pitch mode selected -- A A/T mode is selected -- A thrust reference mode is selected .... A/T then sets climb thrust or selected ref thrust

Question 45

FedEx 767 - Autoflight How can you ensure the most economical flying in the 767?

Answer 45

By remaining in LNAV or VNAV.

Question 46

FedEx 767 - Autoflight When flying an approach with autopilot on, what causes the AFDS to arm the other two autopilot systems?

Answer 46

By pressing the APP switch on the MCP.

Question 47

FedEx 767 - Autoflight Is it possible to capture a glideslope on approach without having already captured the localizer?

Answer 47

No. The AFDS inhibits the glide slope until the localizer is captured.

Question 48

FedEx 767 - Autoflight What modes can you use to descend on a localizer?

Answer 48

- VNAV - FLCH - V/S

Question 49

FedEx 767 - Autoflight What is the max angle from the localizer course the airplane can be and still capture the course?

Answer 49

120 degrees

Question 50

FedEx 767 - Autoflight (T/F): The FLARE mode can be used with single autopilot operations...

Answer 50

False

Question 51

FedEx 767 - Autoflight When does "ROLLOUT" arm?

Answer 51

When "LAND 3" or "LAND 2" annunciate. (approx 5' radio altitude"

Question 52

FedEx 767 - Autoflight Cat 3: When does "ROLLOUT" arm?

Answer 52

When "LAND 3" or "LAND 2" annunciate. (approx 5' radio altitude"

Question 53

FedEx 767 - Autoflight Cat 3: When does "ROLLOUT" engage?

Answer 53

At approx 5' radio altitude.

Question 54

FedEx 767 - Autoflight Cat 3: (T/F): "ROLLOUT" replaces the LOC roll FMA annunciation...

Answer 54

True

Question 55

FedEx 767 - Autoflight Cat 3: When does ROLLOUT disengage?

Answer 55

When either of the following occur: - The airplane comes to a full stop. - The autopilots are disengaged.

Question 56

FedEx 767 - Autoflight When does the Auththrottle IDLE mode disengage?

Answer 56

When the autothrottle is turned off after landing. (When either thrust lever is set in the "Reverse Thrust" position.

Question 57

FedEx 767 - Autoflight What takes place when pushing the GA switch with the Flight Directors not on?

Answer 57

The Flight Director Bars are displayed.

Question 58

FedEx 767 - Autoflight What takes place when pushing the GA switch when the flaps out of up or the GS captured?

Answer 58

GA reference on the N1 display Roll and Pitch activate in "GA" on FMA A/T adjusts thrust to maintain climb rate of 2000 fpm Roll commands bank to maintain ground track AFDS increases pitch to hold existing or MCP speed, whichever is higher. ** If flaps are 20 or less, thrust mode other than GA can be selected.