ATA 22 - Autoflight

Question 1

What does a triple click mean, during an ILS approach ?

Answer 1

Downgrading of the landing capability

Question 2

How do you disengage the EXPD mode ?

Answer 2

Push or pull ALT

Question 3

The mandatory parameter used by the ALPHA FLOOR DETECTION is ?

Answer 3

Angle of attack

Question 4

In case of reverse deployed inflight, what does the aircraft do ?

Answer 4

FADEC sets IDLE thrust automatically on the engine

Question 5

What are the basic MODES of the AP/FD ?

Answer 5

HDG / VS

Question 6

When is the active F-PLN erased ?

Answer 6

Done phase.
When the A/C has been on ground for 30 sec following the landing

Question 7

Which FMGC is supplied after a complete lost of generator (engines & APU), on EMERGENCY GEN ?

Answer 7

FMGC 1 only

Question 8

When both FACs are valids, YAW DAMPER functions are controled by which FAC ?

Answer 8

FAC 1 (FAC 2 in stby)

Question 9

THRUST LEVERS are in the CLB DETENT, if A/THR is disconnected : the engine THRUST are in what state ?

Answer 9

Thrust lock

Question 10

When SRS MODEis engaged, ATHR is not active but is automatically armed. True or False ?

Answer 10

True

Question 11

The engagement of both AUTOPILOTS is possible only after pressing APPR. True or False ?

Answer 11

True

Question 12

Normal electrical power supplies the A/C and the MCDU CRT is dark, without any other warning, what is the reason?

Answer 12

The ‘BRT’ knob is dimmed

Question 13

When are FLIGHT DIRECTOR automatically engaged ?

Answer 13

Aircraft power up
TCAS if auto TCAS

Question 14

During TAKE-OFF, FMA shows ‘SRS’, What is the order of horizontal FD bar ?

Answer 14

AEO: V2 + 10
OEI: current speed at engine failure ( between V2 and V2+15)

Question 15

In flight, having a triple click what does it mean ?

Answer 15

ILS CAPABILITY DOWNGRADED (CAT2 / CAT3 lost)
Modes reversions
GPS PRIMARY LOST message with NPA expected

Question 16

In approach, “LAND” illuminates green on FMA at which radio altitude ?

Answer 16

400ft RA

Question 17

What is the priority source for FM position computation ?

Answer 17

• IRS + GPS
• IRS + DME/DME
• IRS + VOR/DME
• IRS

Question 18

LOC source automatically update FM position during approach. True or False ?

Answer 18

True

Question 19

How is managed the MIX IRS in case of one IRS failure ?

Answer 19

MIX IRS impossible, cannot ensure integrity of the 2 sources
FMGC takes onside IRS or IRS3

Question 20

IRS1 takes which GPS source for GPIRS computation ? IRS3 ?

Answer 20

GPS1
GPIRS1 = MIX IRS from IRS 1 + GPS1

GPS1or2
GPIRS3 = MIX IRS from IRS 3 + GPS1or2

Question 21

Order of priority of GPIRS source for FMGC input ?

Answer 21

FMGC 1
GPIRS1 then 3 then 2

FMGC2
GPIRS2 then 3 then 2

Question 22

Is FM position updated at take-off ?

Answer 22

No if GPS PRIMARY
Else Yes (takes into account TO shift, position aircraft on the runway in the database)

Question 23

How is computed FM position in case GPS and Navaids are lost ?

Answer 23

BIAS is memorized
FM= IRS + BIAS

BIAS is the difference between GPS or Navaids position and IRS position

Question 24

What is the default values of RNP in the PROG page ?

Answer 24

Enroute:2Nm
Terminal:1Nm
Approach: 0.3 Nm in GNSS else 0.5Nm

/!\ different from the values in the db

Question 25

What does mean GPS PRIMARY ?

Answer 25

Accuracy and integrity ok

Question 26

What does mean FM/GPS POSITION DISAGREE ?

Answer 26

GPS vs FM position is different above a certain threshold in latitude or longitude

Question 27

Can we enter a cruise FL higher than the MAX REC FL in the FMGS ?

Answer 27

Yes, MAX REC FL gives at least 1,3g buffet margin.
FMGS will allow a higher cruise altitude provided a 1,2g is ensured. (See SOP)

Question 28

In case of N-1 at take off, what are the bank limitations with AP ?

Answer 28

• Below S-10kt (GD-10kt) : 15°
• At S-3kt (GD-3kt): 30° (25° in selected HDG)
  Linear variations inbetween

Question 29

What is the maximum altitude deviation for FINAL APP to engage at FDP ?

Answer 29

+/-250ft (Sys/ Autoflight Guidance/ AP FD mode …)