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Allegiant A320 Systems (2024) > Navigation & Surveillance > Flashcards

Navigation & Surveillance Flashcards

1
Q

Q1 | ADIRS PANEL

What does the ON BAT light indicate?

[ FCOM-DSC-34-10-20 ]

A
  • It is illuminated amber if one or more IR(s) is supplied by the aircraft battery
  • Also illuminates briefly during
    the beginning of a full alignment

[ FCOM-DSC-34-10-20 ]

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2
Q

Q2 | ADIRS PANEL

How long will each ADIRU stay on battery power?

[ FCOM-DSC-34-10-40 ]

A
  • ADIRS 2 and 3 will remain on battery power for 5 minutes to hold alignment until a generator can be restored.
  • ADIRU 1 (ADIRU 3 if captain selected ATT HDG CAPT 3) will remain on battery power until generator power is restored or battery #2 fails

[ FCOM-DSC-34-10-40 ]

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3
Q

Q3 | ADIRS PANEL

What information is provided by the “IR” units?

(FAT HAAG)

[ FCOM-DSC-34-10-10 ]

A
  • F - Flight path vector
  • A - Airplane position
  • T - Track
  • H - Heading
  • A - Attitude
  • A - Acceleration
  • G - Ground Speed

[ FCOM-DSC-34-10-10 ]

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4
Q

Q4 | ADIRS PANEL

What information is provided by the “ADR” units?

(BOATS)

[ FCOM-DSC-34-10-10 ]

A
  • B - Barometric altitude
  • O - Overspeed warnings
  • A - AOA
  • T - Temperatures
  • S - Speed/Mach

[ FCOM-DSC-34-10-10 ]

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5
Q

Q5 | ADIRS PANEL

What does a steady white ALIGN light indicate?

(Older panel with keypad)

[ FCOM-DSC-34-10-20 ]

A

The respective IR is in the Align mode

[ FCOM-DSC-34-10-20 ]

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6
Q

Q6 | ADIRS PANEL

How does the ADIRS panel indicate that an IR is in ALIGN mode?

[ FCOM-DSC-34-10-30 ]

A
  • Before any engine is started (displayed on E/WD):
    • IR IN ALIGN X MN memo appears in green when at least one active IRS is being aligned
  • When one engine is started (displayed on E/WD):
    • IR IN ALIGN X MN memo appears in amber during IRS alignment
    • IR NOT ALIGNED is displayed as an ECAM Caution Message if the alignment of one IRS is faulty
    • IR IN ATT ALIGN appears in green during the IR alignment in Attitude Mode

[ FCOM-DSC-34-10-30 ]

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7
Q

Q7 | ADIRS PANEL

What does a flashing white align light mean?

(Older panel with keypad)

[ FCOM-DSC-34-10-20 ]

A

There are three reasons that the white align lights will flash:
* There is no current position
* The position is incorrect
* The aircraft moved during alignment

[ FCOM-DSC-34-10-20 ]

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8
Q

Q8 | ADIRS PANEL

How is the crew alerted to the FMGS having no current position, an incorrect position or if the aircraft has moved during the alignment?

[ FCOM-DSC-34-10-20 ]

A

IR IN ALIGN X MN memo pulses in green on the E/WD

[ FCOM-DSC-34-10-20 ]

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9
Q

Q9 | ADIRS PANEL

How do you fast align an IR?

[ FCOM-PRO-SUP-34, FCOM-NOR-SOP-06 ]

A

Select each ADIRS selector OFF and then back to NAV (one at a time) within 5 sec

[ FCOM-PRO-SUP-34, FCOM-NOR-SOP-06 ]

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10
Q

Q10 | ADIRS PANEL

What does the IR pushbutton do on the newer AIDIRS panel?

[ FCOM-DSC-34-10-20 ]

A

Inertial data output of the respective IR is disconnected

[ FCOM-DSC-34-10-20 ]

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11
Q

Q11 | ADIRS PANEL

What does steady illumination of the amber IR FAULT light indicate?

[ FCOM-DSC-34-10-20 ]

A

A fault affects the respective IR

[ FCOM-DSC-34-10-20 ]

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12
Q

Q12 | ADIRS PANEL

What does flashing illumination of the amber IR FAULT light indicate?

[ FCOM-DSC-34-10-20 ]

A

Attitude and heading may be recovered in ATT mode (you have lost the navigation portion)

[ FCOM-DSC-34-10-20 ]

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13
Q

Q13 | ADIRS PANEL

What does the amber ADR FAULT light indicate?

[ FCOM-DSC-34-10-20 ]

A

A fault is detected in the Air Data Reference portion

[ FCOM-DSC-34-10-20 ]

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14
Q

Q14 | ADIRS PANEL

Does turning the IR Mode Rotary Switch to OFF also turn off the ADR?

[ FCOM-DSC-34-10-20 ]

A

Yes

[ FCOM-DSC-34-10-20 ]

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15
Q

Q15 | ADIRS PANEL

Can you turn the ADR OFF and still have the IR?

[ FCOM-DSC-34-10-20 ]

A

Yes

[ FCOM-DSC-34-10-20 ]

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16
Q

Q16 | ADIRS PANEL

When is a full alignment of the ADIRU required?

[ FCOM-PRO-NOR-SOP-07 ]

A

Full alignment of the IRS is required:
* Before the first flight of the day, or
* When there is a crew change or
* When the GPS is not available and the NAVAIDS coverage is poor on the expected route, or
* When the GPS is not available and the expected flight time is more the 3 hours
* When any portion of the flight is conducted in Class II Navigation

[ FCOM-PRO-NOR-SOP-07 ]

17
Q

Q17 | ADIRS PANEL

Describe the process for a full alignment of the ADIRS when the FLAPS are not retracted.

[ FCOM-PRO-NOR-SOP-07 ]

A
  • If the FLAPS are not retracted the flight crew should not set all ADIRS to OFF at the same time
  • In order to perform the alignment with the FLAPS not retracted, set a single IR mode selector to OFF for more than 5 seconds, then set that IR mode selector to NAV. Repeat this for each remaining IR mode selector switch.

[ FCOM-PRO-NOR-SOP-07 ]

18
Q

Q18 | ADIRS PANEL

What would be missing on the Captain’s PFD and ND if IR1 failed or was turned OFF?

[ FCOM-DSC-34-10-10 ]

A

Attitude and navigation information would be lost. ATT and HDG flags will be displayed on the PFD and MAP NOT AVAIL will be on the ND

[ FCOM-DSC-34-10-10 ]

19
Q

Q19 | ADIRS PANEL

What action would recover the attitude and navigation information if IR1 failed or was turned off?

[ FCOM-DSC-34-10-20 ]

A

Selecting CAPT 3 on the EIS switching panel ATT/HDG selector

[ FCOM-DSC-34-10-20 ]

20
Q

Q20 | ADIRS PANEL

What would restore the lost altitude and airspeed information if IR1 failed or was turned off?

[ FCOM-DSC-34-10-20 ]

A

Selecting CAPT 3 on the EIS Switching Panel AIR DATA Selector

[ FCOM-DSC-34-10-20 ]

21
Q

Q21 | GPWS PANEL

Pressing the SYS pushbutton does what?

[ FCOM-DSC-34-70-40 ]

A

Inhibits all EGPWS warnings except TERR system

[ FCOM-DSC-34-70-40 ]

22
Q

Q22 | GPWS PANEL

What does an amber FAULT light in the SYS pushbutton indicate on the GPWS panel?

[ FCOM-DSC-34-70-40 ]

A

Any failure of basic GPWS modes 1 through 5

[ FCOM-DSC-34-70-40 ]

23
Q

Q23 | GPWS PANEL

What does LDG FLAP 3 ON light indicate?

[ FCOM-DSC-34-70-40 ]

A

“Too Low Flaps” inhibited for a Flap 3 landing

[ FCOM-DSC-34-70-40 ]

24
Q

Q24 | GPWS PANEL

When would you press the FLAP MODE pushbutton?

[ FCOM-DSC-34-70-40 ]

A

To avoid nuisance warnings when landing with flaps less than 3

[ FCOM-DSC-34-70-40 ]

25
Q

Q25 | GPWS PANEL

If the TERR mode failed, does it affect the basic GPWS?

[ FCOM-DSC-34-70-40 ]

A

No

[ FCOM-DSC-34-70-40 ]

26
Q

Q26 | TRANSPONDERS

How many transponders are installed?

[ FCOM-DSC-34-50-10 ]

A

2

[ FCOM-DSC-34-50-10 ]

27
Q

Q27 | TRANSPONDERS

Does illumination of the ATC FAIL light indicate loss of all transponder capability?

[ FCOM-DSC-34-50-20 ]

A

No – only the selected transponder has failed

[ FCOM-DSC-34-50-20 ]

28
Q

Q28 | WEATHER RADAR PANEL

What capabilities does the RADAR system have?

[ FCOM-DSC-34-60-10 ]

A
  • Weather avoidance
  • Turbulence detection
  • Terrain mapping
  • Predictive windshear detection

[ FCOM-DSC-34-60-10 ]

29
Q

Q29 | WEATHER RADAR PANEL

What would prevent the weather display on the ND?

[ FCOM-DSC-31-45 ]

A
  • Mode selector in PLAN
  • TERR selected ON

[ FCOM-DSC-31-45 ]

30
Q

Q30 | WEATHER RADAR PANEL

When is WX/TURB mode available?

[ FCOM-DSC-34-60-30 ]

A

At ranges of 40 nm or less

[ FCOM-DSC-34-60-30 ]

31
Q

Q31 | WEATHER RADAR PANEL

Does predictive windshear detection work when the RADAR system is switched OFF?

[ FCOM-DSC-34-60-20 ]

A

Yes, if the windshear switch is in AUTO

[ FCOM-DSC-34-60-20 ]

32
Q

Q32 | GPWS PANEL

What is the scanned area of the predictive windshear detection feature?

[ FCOM-DSC-34-10 ]

A

Up to 5 nm ahead of the aircraft when the aircraft is below 1,500 feet AGL

[ FCOM-DSC-34-10 ]

33
Q

Q33 | WEATHER RADAR PANEL

When are predictive windshear alerts inhibited?

[ FCOM-DSC-34-10 ]

A

When landing below 50 feet AGL

[ FCOM-DSC-34-10 ]

34
Q

Q34 | WEATHER RADAR PANEL

How many RADAR systems are installed?

[ FCOM-DSC-34-10 ]

A

1

[ FCOM-DSC-34-10 ]

Allegiant A320 Systems (2024) (18 decks)

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