Flight Instruments & Auto Flight Flashcards
Name the 6 common DUs
Capt’s outboard - Capt’s inboard - Upper - FO’s inboard - FO’s outboard Lower
When is the rising runway displayed?
Below 2500’ RALT & LOC signal
Where is the displayed vertical speed on the PFD derived from?
ADIRU
Where are TCAS alerts and commands presented?
- PFD shows red trapezoid(s) and some VSIs show a red exclusion zone
- ND shows alerts and traffic position
PFD alt strip, where is the amber line and cross hatch data from?
FMC landing alt for destination airfield or rwy or FMC departure rwy alt
Swaps over at 400nm or 1⁄2 distance whichever lower.
On the EADI, what does ‘ROLL’ mean?
Capt and FO roll attitude differs by >5deg (instantaneously)
On the PFD what causes ‘IAS DISAGREE’?
Capt and FO IAS differs by >5kts for >5 sec
On the PFD what causes ‘ALT DISAGREE’?
Capt and FO Alt differ by >200ft for >5 sec
What is the AUTO source for the 6 common DUs?
DEU1 = Both Capt’s and upper DEU 2 = Both FO’s and lower
What happens if a DEU fails in AUTO?
‘DISPLAY SOURCE’ amber caption in flight
‘CDS FAULT’ (Common Display Fault) on ground, not dispatchable Either EEC will drop into ‘ALTN’
Some Hyd & FF indications will occult
How many primary pitot static systems are there?
2, Capt & FO. (+ aux system)
What is the source for the stby alt?
the Alt static port
What is the source for the stby ASI?
Alt static port and Aux pitot probe
What sensors are heated?
Capt, FO and Aux pitot, both AoA vanes, TAT sensor (only static ports not heated)
On the ND how do you distinguish ADF and VOR?
VOR green, ADF blue (Cyan)
What is the default VNAV path pointer scale?
+/-400ft (can be manually changed)
Assuming you are 200ft high how will the VNAV path pointer display?
Same sense at ILS, the purple diamond is the path the centre white reference mark is the ac. If high the purple diamond will be below the centre mark. 200ft would be 1⁄2 default scale deflection.
Top black and red barber pole on ASI?
Vmo, Mmo or current flap limiting speed
Upper amber hockey stick on ASI?
Max mvr speed (1.3g to hi spd buffet) or
If flap not up, shows the max speed for the next stage of flap.
Lower amber hockey stick on ASI?
1.3g buffer to stall
Lower black and red barber pole on ASI?
Stick shaker (stall)
When does the slip bar turn from hollow to filled in?
At full scale deflection
When does the turn arrow and slip bar turn amber?
Above 35 deg AOB
‘BANK ANGLE, BANK ANGLE’ ?
5-30ft RALT sounds >10 AOB
30-130ft RALT linear scale from 10 to 35 AOB
>130ft RALT alerts at >35 AOB, repeats at 40 and 45 degs AOB
If you fly above FMC trans Alt with QNH selected, what are the indications?
Amber box apears around the QHN
If you fly below FMC trans alt with STD set, what are the indications?
Amber box apears around STD
When will the GS and wind displays on the ND appear?
> 101 kts GS and >6kts wind speed (wind occults <4kts)
What colour is an inactive (or activated but not executed) route?
Cyan dashed
What colour is an ‘active’ (executed) route?
Purple (magenta)
What colour is a modified (not executed) route?
White dashed
What colour is an offset route?
Magenta, dash dot dashed
What does the PTV (position trend vector) show?
Each segemt shows the ac predicted position in 30 sec based on instantanious AOB and GS.
When does the PTV show 1, 2 or 3 segments?
1 segemnt = 30 sec = <20nm scale on radar
2 segemnts = 60 sec = 20nm scale
3 segemnts = 90 sec = >20nm scale
VOR test?
Tune a VOR, course set 000 deg, press test:
VOR flag, deviation bar disappears then centres, slews to 180 deg