FMS

Question 1

When do the ILS receivers tune and the frequency and course display after you select an ILS while inbound to the landing airport?

Answer 1

• within 150nm of destination airport, or
• 50nm of T/D, or
• FMC descent, or

Question 2

How long is ILS autotune inhibited after takeoff?

Answer 2

10 minutes

Question 3

How could you autotune a new approach frequency during the 10-minute autotune inhibit period?

Answer 3

Disengage AP and turn OFF both FD switches

Question 4

If the tuned frequency of a navigation station or an incorrect identifier displays instead of the correct Morse code identifier, what should you do?

Answer 4

Verify with audio Morse code

Question 5

How many FMS’s and how many FMCs are provided?

Answer 5

1 FMS consisting of 3 FMCs

Question 6

When does the approach phase of the FMS start?

Answer 6

first waypoint procedure sequences or when runway active waypoint and distance to go < 25nm

Question 7

When will the FMC fail to sequence the active waypoint?

Answer 7

If doesn’t intercept route before it?

Question 8

What determines present position of the airplane, and where on the ND is it displayed?

Answer 8

GPS
IRS updated by Nav radios
IRS

Question 9

How is the FMC position updated?

Answer 9

IRS updated by GPS
If GPS not active, TO/GA updates FMC to runway threshold (or intersection as required

Question 10

What is the E/D point for approaches?

Answer 10

50’ above runway thresholds for all approaches except VOR
VOR - missed approach point

Question 11

What condition or feature of the FMC allows us to set missed approach altitude while in a VNAV PTH, allowing us to continue descent on approach?

Answer 11

‘On approach’ FMC logic

Question 12

What could happen if you advance the thrust levers further during a TO1 or TO2 fixed derate, following an engine failure?

Answer 12

fixed derates are considered limitations
Increasing thrust more than this could cause directional control issues (as VMCG is calculated based on these limits)

Question 13

Can you manually apply more thrust when conditions are necessary during an assumed temperature thrust reduction takeoff?

Answer 13

Yes

Question 14

If you lose electrical power to the FMC, and then it returns, do you have to re-enter performance data on the PERF INIT page?

Answer 14

Yes

Question 15

Is the autothrottle available during dual FMC failure?

Answer 15

No

Question 16

Are LNAV and VNAV available in alternate navigation?

Answer 16

No

Question 17

What CDU pages are available during the Alternate Navigation?

Answer 17

Progress
Legs
Nav Rad

Question 18

Is it OK for the pilots to enter information in both CDUs at the same time?

Answer 18

No

Question 19

When do the ILS frequency and course and the word PARK display on the NAV/RAD page when en-route to the destination?

Answer 19

< 200nm from T/D, or
> half way to destination (whichever less)

Question 20

What is the maximum thrust reduction limit in terms of percentage when using assumed temperature?

Answer 20

25%

Question 21

What system logic features of the FMC Arrivals page allow a quick air turn back to the origin airport?

Answer 21

During climb, < 400nm from origin, when nearer origin than destination:
Pushing DEP ARR displays ARRIVALS for origin airport

Question 22

Can the FMC display engine out performance limitations based on two engines out?

Answer 22

Yes

Question 23

On what page of the CDU could you find runway length for the selected runway?

Answer 23

Approach ref

Question 24

How do the glideslope and localizer pointers on the PFD indicate excessive glideslope or localizer deviation?

Answer 24

scale turns amber and pointer flashes

Question 25

What does the acronym EIU mean?

Answer 25

EFIS/EICAS interface unit

Question 26

What does acronym EFIS mean?

Answer 26

Electronic Flight Instrument System

Question 27

Which IRS source provides autobrakes reference?

Answer 27

IRU selected on captain’s side

Question 28

How can you control displays if the display select panel fails?

Answer 28

CDU

Question 29

The pilot static system provides pitot and static pressure to which aircraft systems and/or components?

Answer 29

ADCs
Standby ASI
Standby Altimeter
Elevator feel computer