Navigation/Surveillance

Question 1

What does the ON BAT light indicate?

Answer 1

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

Question 2

How long will each ADIRU stay on battery power?

Answer 2

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

Question 3

What information is provided by the “IR” units?

Answer 3

(FAT HAAG)
º F - Flight path vector
º A - Airplane position
º T - Track
º H - Heading
º A - Attitude
º A - Acceleration
º G - Ground Speed

Question 4

What information is provided by the “ADR” units?

Answer 4

(BOATS)
º B - Barometric altitude
º O - Overspeed warnings
º A - AOA
º T - Temperatures
º S - Speed/Mach

Question 5

What does a steady white ALIGN light indicate?

Answer 5

The respective IR is in the Align mode

Question 6

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

Answer 6

º 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

º 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

Question 7

What does a flashing white align light mean?

Answer 7

-There is no current position
- The position is incorrect
- The aircraft moved during alignment

Question 8

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

Answer 8

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

Question 9

How do you fast align an IR?

Answer 9

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

Question 10

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

Answer 10

Inertial data output of the respective IR is disconnected

Question 11

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

Answer 11

A fault affects the respective IR

Question 12

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

Answer 12

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

Question 13

What does the amber ADR FAULT light indicate?

Answer 13

A fault is detected in the Air Data Reference portion

Question 14

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

Answer 14

Yes

Question 15

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

Answer 15

Yes

Question 16

When is a full alignment required of the ADIRU required?

Answer 16

• 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

Question 17

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

Answer 17

º If the FLAPS are not retracted the flight crew should not set all ADIRS to OFF at the same time
º 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.

Question 18

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

Answer 18

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

Question 19

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

Answer 19

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

Question 20

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

Answer 20

Selecting CAPT 3 on the EIS Switching Panel AIR DATA Selector

Question 21

Pressing the SYS pushbutton does what?

Answer 21

Inhibits all EGPWS warnings except TERR system

Question 22

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

Answer 22

Any failure of basic GPWS modes 1 through 5

Question 23

What does LDG FLAP 3 ON light indicate?

Answer 23

“Too Low Flaps” inhibited for a Flap 3 landing

Question 24

When would you press the FLAP MODE pushbutton?

Answer 24

To avoid nuisance warnings when landing with flaps less than 3

Question 25

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

Answer 25

No

Question 26

How many transponders are installed?

Answer 26

2

Question 27

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

Answer 27

No – only the selected transponder has failed

Question 28

What capabilities does the RADAR system have?

Answer 28

º Weather avoidance
º Turbulence detection
º Terrain mapping
º Predictive windshear detection

Question 29

What would prevent the weather display on the ND?

Answer 29

º Mode selector in PLAN
º TERR selected ON

Question 30

When is WX/TURB mode available?

Answer 30

At ranges of 40 nm or less

Question 31

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

Answer 31

Yes, if the windshear switch is in AUTO

Question 32

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

Answer 32

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

Question 33

When are predictive windshear alerts inhibited?

Answer 33

When landing below 50 feet AGL

Question 34

How many RADAR systems are installed?

Answer 34

1