Chapter 10 - Flight Instruments & Displays Flashcards
What data does the ADIRS manage?
- Speed
- Altitude
- Position
- Attitude
What other sources does the ADIRS send data to?
FMC, displays, engine controls
How many ADIRUs do we have?
2 - L & R
What do the static ports collect?
Barometric altitude and vertical speed.
White CDS caption vs Amber CDS FAULT
Dispatchable vs no dispatch fault
DISPLAY SOURCE 1 or DISPLAY SOURCE 2 fault. What is it?
DEU failure.
What things can we expect to be missing following a DEU failure (DISPLAY SOURCE 1/ 2 Flag on PFDs)
- Hydraulic pressure removed on failed side
- No stick shaker or manoeuvring speeds
- Vertical speed removed
- No dual channel approach (removed @ 400ft on ILS)
Consideration following a DEU failure (DISPLAY SOURCE 1/ 2 Flag on PFDs) on auto flight systems
- Above FL220
- Below FL220
- Above FL220 - DEU Failure should have no effect on auto flight
- Below FL220 - pitch bar command removed, reversion to CWS. No vertical on failed side.
What happens to the radio altimeter while descending through 2500ft
White box for 10 seconds.
What happens to the radio altimeter while descending below 1000ft
Round dial display
What happens to the radio altimeter while descending below minimums
Amber flashing pointer and perimeter.
Regarding the speed bugs, what does the white bug show?
V2 + 15kts on departure
VREF + 20kts on approach
When is the white bug shown on the speed tape?
Until VREF is selected, or flaps retracted
What does the top of the red and black bar signify on the speed tape?
Where stick shaker activation occurs.
Low speed buffet above 20000ft.
What does the top of the amber bar mean?
1.3G minimum manoeuvre
