FMS

Question 1

What is FMS?

Answer 1

a computer based flight control system.

Question 2

What does FMS do?

Answer 2

It reduces pilot workload by
providing automatic navigational radio tuning,
lateral and vertical navigation,
thrust management and
display of flight maps .

Question 3

The FMS can automatically:

Answer 3

tune the NAV radios and determine LNAV courses.

Question 4

The Flight management computer (FMC) uses flight-crew entered flight plan information, airplane systems data, and FMC navigation database to calculate:

Answer 4

airplane present position, pitch, roll, and thrust commands required to fly an optimum flight profile.

Question 5

The FMC sends these commands to the:

Answer 5

auto throttle, autopilot, and flight director.

Question 6

The Keyboard contains what three types of push button switches:

Answer 6

Alphanumeric
Line Select
Function/Mode

Question 7

Switches are often called:

Answer 7

Keys

Question 8

What are the four annunciators which illuminate when the current page is not related to the active flight plan?

Answer 8

DSPY
FAIL
MSG
OFST

Question 9

What is the automatic FMS phase order?

Answer 9

Preflight
Takeoff
Climb
Cruise
Descent
Approach
Flight Complete

Question 10

After landing, the flight complete phase does what?

Answer 10

clears the active flight plan and loaded data

Question 11

The Flight Management Computer (FMC) master switch selects which FMC will control commands for:

Answer 11

autopilot, Autothrottle and radio tuning.

Question 12

The secondary FMC will then operate in a __________ mode, in the event that the master should fail.

Answer 12

hot-standby

Question 13

What is used to input preprogrammed navigational parameters known as a Navigation Data Base (NAV Data)?

Answer 13

A data loader

Question 14

If a placard is not required on the LRU to identify the software, then how is it identified?

Answer 14

it is identified electronically.

Question 15

What are spare copies of the loadable software supplied on when an airplane is delivered?

Answer 15

digital storage media (normally disks)

Question 16

The 777 maintenance access terminal (MAT) includes a:

Answer 16

mass storage device as standard equipment.

Question 17

Loadable software falls into what four categories according to function?

Answer 17

Operational Program Software (OPS)
Operational Program Configuration (OPC)
Database
Airline Modifiable Information (AMI)

Question 18

To order a loadable LRU with preloaded software the technician must:

Answer 18

order both the software and hardware part numbers and stipulate that the software is to be loaded into the LRU.

Question 19

The _____ is typically the largest, most complex software associated with an LRU.

Answer 19

OPS

Question 20

The _____ is small compared to the OPS and typically requires less than one minute to load.

Answer 20

OPC

Question 21

The Nav Data Base is a:

Answer 21

database of navigation and route information used by the FMC to carry out navigation tasks.

Question 22

NDB software is typically revised how often?

Answer 22

every 28 days

Question 23

What must be done whenever a loadable LRU is replaced?

Answer 23

the loadable software configuration that is certified for the airplane on which it is installed must be loaded into the replacement LRU.

Question 24

The part numbers of the software loaded into a loadable system are part of what?

Answer 24

the aircraft’s type
certificate.

Question 25

Some Airbus aircraft are completely fly by wire systems and have no :

Answer 25

mechanical linkage from the flight surfaces to the control inputs

Question 26

All control commands are routed through the:

Answer 26

FMGC

Question 27

The flight deck controls use both _____ and ______ inputs.

Answer 27

digital and analog

Question 28

Data sources were typically 3.5 inch floppy disk or CD-ROM, but are now:

Answer 28

portable Solid State Storage Devices

Question 29

Feedback from the servo motor is sent back to each:

Answer 29

FMC

Question 30

The FMC also sends output data to the:

Answer 30

Integrated Display Unit System (IDU’s)

Question 31

The CMCS stores what?

Answer 31

all fault data that can later be retrieved by the technician for analysis and fault isolation.

Question 32

Boeing: CMCS interrogation is done through what?

Answer 32

the CDU and displayed on the PFD’s.

Question 33

Airbus A330/340: CMC interrogation is done through what?

Answer 33

the use of a laptop computer using
Computer Assisted Aircraft Troubleshooting (CAATS) software.

Question 34

What are the seven options available in the CMC?

Answer 34

Present Faults
Confidence Tests
Existing Faults
Fault History
Ground Tests
EICAS Maintenance Pages
Other Functions

Question 35

The present leg is defined as what?

Answer 35

the elapsed time between first engine start and last engine shutdown.

Question 36

LSK stands for:

Answer 36

(Line Select Key)

Question 37

A nuisance message is considered as:

Answer 37

any FDE or CMC message that is not caused by an actual fault

Question 38

A nuisance message may be caused by:

Answer 38

certain normal operating procedures, such as electrical power transfers or abnormal operation of a system during preflight.

Question 39

There can be up to ____ faults from a maximum of 99 flight legs stored in the nonvolatile memory in the fault history.

Answer 39

500

Question 40

All fault categories are listed according to what?

Answer 40

ATA chapter

Question 41

There are three types of information:

Answer 41

Real Time Data
Auto Event Data
Manual Event Data