ATA 22 - Autoflight Flashcards
What does a triple click mean, during an ILS approach ?
Downgrading of the landing capability
How do you disengage the EXPD mode ?
Push or pull ALT
The mandatory parameter used by the ALPHA FLOOR DETECTION is ?
Angle of attack
In case of reverse deployed inflight, what does the aircraft do ?
FADEC sets IDLE thrust automatically on the engine
What are the basic MODES of the AP/FD ?
HDG / VS
When is the active F-PLN erased ?
Done phase.
When the A/C has been on ground for 30 sec following the landing
Which FMGC is supplied after a complete lost of generator (engines & APU), on EMERGENCY GEN ?
FMGC 1 only
When both FACs are valids, YAW DAMPER functions are controled by which FAC ?
FAC 1 (FAC 2 in stby)
THRUST LEVERS are in the CLB DETENT, if A/THR is disconnected : the engine THRUST are in what state ?
Thrust lock
When SRS MODEis engaged, ATHR is not active but is automatically armed. True or False ?
True
The engagement of both AUTOPILOTS is possible only after pressing APPR. True or False ?
True
Normal electrical power supplies the A/C and the MCDU CRT is dark, without any other warning, what is the reason?
The ‘BRT’ knob is dimmed
When are FLIGHT DIRECTOR automatically engaged ?
Aircraft power up
TCAS if auto TCAS
During TAKE-OFF, FMA shows ‘SRS’, What is the order of horizontal FD bar ?
AEO: V2 + 10
OEI: current speed at engine failure ( between V2 and V2+15)
In flight, having a triple click what does it mean ?
ILS CAPABILITY DOWNGRADED (CAT2 / CAT3 lost)
Modes reversions
GPS PRIMARY LOST message with NPA expected
In approach, “LAND” illuminates green on FMA at which radio altitude ?
400ft RA
What is the priority source for FM position computation ?
- IRS + GPS
- IRS + DME/DME
- IRS + VOR/DME
- IRS
LOC source automatically update FM position during approach. True or False ?
True
How is managed the MIX IRS in case of one IRS failure ?
MIX IRS impossible, cannot ensure integrity of the 2 sources
FMGC takes onside IRS or IRS3
IRS1 takes which GPS source for GPIRS computation ? IRS3 ?
GPS1
GPIRS1 = MIX IRS from IRS 1 + GPS1
GPS1or2
GPIRS3 = MIX IRS from IRS 3 + GPS1or2
Order of priority of GPIRS source for FMGC input ?
FMGC 1
GPIRS1 then 3 then 2
FMGC2
GPIRS2 then 3 then 2
Is FM position updated at take-off ?
No if GPS PRIMARY
Else Yes (takes into account TO shift, position aircraft on the runway in the database)
How is computed FM position in case GPS and Navaids are lost ?
BIAS is memorized
FM= IRS + BIAS
BIAS is the difference between GPS or Navaids position and IRS position
What is the default values of RNP in the PROG page ?
Enroute:2Nm
Terminal:1Nm
Approach: 0.3 Nm in GNSS else 0.5Nm
/!\ different from the values in the db
What does mean GPS PRIMARY ?
Accuracy and integrity ok
What does mean FM/GPS POSITION DISAGREE ?
GPS vs FM position is different above a certain threshold in latitude or longitude
Can we enter a cruise FL higher than the MAX REC FL in the FMGS ?
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)
In case of N-1 at take off, what are the bank limitations with AP ?
- Below S-10kt (GD-10kt) : 15°
- At S-3kt (GD-3kt): 30° (25° in selected HDG)
Linear variations inbetween
What is the maximum altitude deviation for FINAL APP to engage at FDP ?
+/-250ft (Sys/ Autoflight Guidance/ AP FD mode …)
