GNADIRS Panel Flashcards

1
Q

When you turn the mode Selectors to NAV, what are you looking for on the panel?

A

Ensure that each ADIR has the ability to revert to the batteries by observing the BAT light illuminating for several seconds.

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2
Q

What does the ON BAT light indicate?

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.

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3
Q

What does a flashing white align light mean?

A
  • IR alignment fault (aircraft moved during alignment)
  • No present position entered within 10 minutes of NAV selection
  • Difference of 1° Lat/Long between shutdown and entered position
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4
Q

What does a steady white ALIGN light indicate?

A

The respective IR is in the Align mode.

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5
Q

What does it mean when the IR lights are extinguished?

A

Alignment has been completed

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6
Q

How do you fast align an IR?

A

Turn the IR mode selectors OFF momentarily (not more than 5 seconds) and then back on

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7
Q

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

A

A fault affects the respective IR.

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8
Q

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

A

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

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9
Q

What does the amber ADR FAULT light indicate?

A

A fault is detected in the Air Data Reference part.

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10
Q

Does turning the IR to OFF also turn off the ADR?

A

Yes

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11
Q

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

A

Yes

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12
Q

What would be missing on the on the Captain’s PFD if IR 1 failed or was turned OFF?

A

Attitude and heading information

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13
Q

What action would recover the attitude and heading information?

A

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

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14
Q

What information must be input when the IR is in ATT?

A

Input Heading on the IR panel every 10 minutes

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15
Q

With the loss of ADR 1, what would be lost on the Captains PFD?

A

Airspeed and Altitude information

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16
Q

What would restore the lost altitude and airspeed information?

A

Selecting CAPT 3 on the EIS Switching Panel AIR DATA Selector

17
Q

How do you normally enter Present Position into the IR?

A
  • Insert the Lat/Long on the MCDU INIT page

- Then press Align IRS