MCDU / FLIGHT MANAGEMENT GUIDANCE SYSTEM Flashcards

1
Q

What are the main components of the FMGS?

A

a. 2 FMGCs
b. 2 MCDUs
c. 1 FCU (two independent channels)
d. 2 FACs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the functions of the Flight Management Guidance Computers?

A

a. Flight Guidance

b. Flight Management

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the 3 modes of FMGC operation?

A

a. Independent (MCDU scratchpad displays – INDEPENDENT OPERATION)
b. Single (ND displays - SELECT OFFSIDE RNG/MODE)
c. Dual (Normal)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the 2 modes of flight guidance?

A

a. Managed Guidance

b. Selected Guidance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the Managed mode of flight guidance used for?

A

Long-term lateral, vertical, and speed profiles as determined by the FMGS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the Selected mode of flight guidance used for?

A

Temporary lateral, vertical, and speed commands as selected with the FCU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Does Selected or Managed Guidance have priority?

A

Selected Guidance always has priority

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How do you determine the validity of the navigation database?

A

On the Aircraft Status page via the MCDU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What input does each FMGC use for position determination?

A

A hybrid (“mix”) IRS/GPS position

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How does autopilot selection influence master FMGS logic?

A

a. If one autopilot is engaged, the respective FMGS is master
b. If both autopilots are engaged, FMGS 1 will be the master

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

If an amber SELECT OFFSIDE RNG/MODE message is displayed on the ND what action should the crew take?

A

An FMGS has failed and both NDs must be set to the same mode and range (single mode)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Can both autopilots be engaged during any phase of flight?

A

No, only during an ILS approach

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the difference between the large and small fonts utilized in the MCDU?

A

a. Large – Pilot entries and modifiable data

b. Small – Default/computed non-modifiable data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When would a Takeoff Shift be entered on the PERF TO page?

A

When takeoff begins at a runway intersection and GPS is not primary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Where do you enter the Zero Fuel Weight?

A

INIT B page (not accessible after engine start)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What do amber box prompts on the MCDU indicate?

A

An entry is mandatory

17
Q

What occurs when managed NAV mode is engaged and the aircraft flies into a flight plan discontinuity?

A

NAV mode will be lost and the HDG/TRK mode engages