FMS Flashcards

(29 cards)

1
Q

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

A
  • within 150nm of destination airport, or
  • 50nm of T/D, or
  • FMC descent, or
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2
Q

How long is ILS autotune inhibited after takeoff?

A

10 minutes

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3
Q

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

A

Disengage AP and turn OFF both FD switches

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4
Q

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

A

Verify with audio Morse code

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5
Q

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

A

1 FMS consisting of 3 FMCs

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6
Q

When does the approach phase of the FMS start?

A

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

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7
Q

When will the FMC fail to sequence the active waypoint?

A

If doesn’t intercept route before it?

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8
Q

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

A

GPS
IRS updated by Nav radios
IRS

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9
Q

How is the FMC position updated?

A

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

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10
Q

What is the E/D point for approaches?

A

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

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11
Q

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?

A

‘On approach’ FMC logic

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12
Q

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

A

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

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13
Q

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

A

Yes

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14
Q

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?

A

Yes

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15
Q

Is the autothrottle available during dual FMC failure?

A

No

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16
Q

Are LNAV and VNAV available in alternate navigation?

17
Q

What CDU pages are available during the Alternate Navigation?

A

Progress
Legs
Nav Rad

18
Q

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

19
Q

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

A

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

20
Q

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

21
Q

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

A

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

22
Q

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

23
Q

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

24
Q

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

A

scale turns amber and pointer flashes

25
What does the acronym EIU mean?
EFIS/EICAS interface unit
26
What does acronym EFIS mean?
Electronic Flight Instrument System
27
Which IRS source provides autobrakes reference?
IRU selected on captain's side
28
How can you control displays if the display select panel fails?
CDU
29
The pilot static system provides pitot and static pressure to which aircraft systems and/or components?
ADCs Standby ASI Standby Altimeter Elevator feel computer