Wizz A320 tech Flashcards
Pack controller secondary channel failure
No effect on pack regulation - backup mode lost
In normal flight in closed circuit config the avionics ventilation system controls the temperature of cooling air by
passing air through skin heat exchanger
Zone controller primary and secondary failure, what temp maintained by Pack 1 &2?
Pack 1 - 20°C
Pack 2 - 10°C
Conditioned air is directed to:
Cockpit, FWD and AFT cabins
Pack controller, primary channel failure:
Secondary computer operates as a back up, optimised regulation lost and pack flow fixed at previous level
Pack controller primary & secondary channel failure
Pack outlet temp controlled by anti-ice valve
Temp between 5° and 30° within 6 minutes
ECAM signals lost
IR fault light steady?
IR fault light flashing?
Steady: IR is lost
Flashing: Attitude & heading may be recovered in ATT mode
IR Align light steady?
IR Align light flashing?
IR Align light out?
Steady: IR is operating normally in align mode
Flashing: IR alignment fault, orno position after 10 min, or difference between position at shutdown and entered position exceeds 1 ° of latitude or longitude. Alignment has been completed.
Out: Alignment complete
IR rotary knob to ATT
IR only supplies Attitude & heading, heading is entered frequently through CDU keyboard
ADM (Air Data Module) supplies what data to PFD?
Airspeed, altitude, back up vertical speed
What does LOW ACCURACY mean?
FMGC position and actual radio position difference exceed limits
SRS guidance during take off commands what speed?
V2+10
OEI is current speed (max V2+15)
The FM part of the FMGC controls what?
Nav Flight Planning Optimisation of perf Nav radios Displays
The FG part of the FMGS controls what?
AP
A.THR
FD
What constitutes the FMGS?
2 FMGC
2 MCDU
1 FCU
2 FAC
How long does normal IR alignment take? Fast align?
10 minutes
30 seconds
In flight, normal law, alpha prot active, what does side stick control?
AoA directly
A320/1 RFF level requirement
A320 = 6
A321 = 7
Can be reduced 1 level lower if small number of movements
Tempo downgrade 2 levels
320 hydraulic reservoir pressurised by?
HP bleed air from Eng 1
Min visual reference for Cat 1, 2 3a 3b
Taxiway lighting
Green centre, blue edge
Runway centreline lights continuous red how much runway remaining?
300m
Runway centreline lights red / white alternate how much runway remaining?
900m
Contaminated runway definition
25% or more covered >3mm
What does aft CG do to stability?
Reduces stability, control forces, and tail downforce required,
Blocked pitot, normal static effect on airpseed
indicated speed increases with altitude, vice versa
MEA definition
Min enroute alt: min height between fixes that allows radio reception and obstacle clearance within 5nm of airway
What colour circuit breakers are monitored by the ECAM?
Green
What colour circuit breakers are not monitored by the ECAM?
Black
What are yellow CBs for?
Must be pulled when flying only on batteries
BLOWER or EXTRACT in OVRD air from air conditioning system is added to ventilation air: True or False?
True
APU bleed fault light illuminates if:
Bleed leak
When does the engine bleed valve auto close pneumatically?
If upstream pressure is low or reverse flow
How many motors control the crossbreed valve?
2 electric
1 auto, 1 manual
If BMC1 fails what warnings are lost?
Associated Eng Bleed Leak is lost (1 in this case)
APU Bleed Leak warning is lost in case of BMC1 fail
Bleed air normally comes from which compressor stage? LP, IP or HP?
IP
Describe Bleed overheat detection system
Leak detection loops detect leak in wings fuselage and pylons
Single loop - pylon & APU
Double loop - wing
What is Mach number
TAS divided by LSS
Cabin oxygen mask requirement
Seats + 10%
Cold front parked aircraft, altimeter up or down?
Decreases in altitude reading after cold front arrives
If pitot is blocked but static source ok, what speed is shown?
Zero
What type of weather front most likely to give freezing rain?
Warm occulsion
If total pressure probe is blocked what happens to IAS during climb?
Increases
QDM
Magnetic bearing to station
QTE
True bearing from station
QUJ
True track to station
In case of a static blockage, the airspeed indicator will _______ in climb and ________ in descent
under read in climb and over read in descent
Strongest CAT in a jetstream is where?
In warm air mass under tropopause on cold side - on left side when looking downstream
Wizzair first flight?
19th May 2004 Katowice to Luton
Wizzair fleet size
120 with orders of around 400
Wizzair staff count?
4500
Wizzair routes & countries numbers
151 airports in 44 countries
710 routes
Wizzair ICAO code
WZZ
Wizzair CEO
József Váradi
Wizzair IATA code
W6
Pax count 2021?
22 mil
Wizzair fuel saving strategies:
Cost index fleet specific Speed compliance Perf/Idle factors ZFW optimisation Reduced TO config Conf 3 landing
Most northerly, southern, eastern, western destination
Tromso
Keflavík
Mattala Sri Lanka (East & South)