Avionics, Flight Instruments Flashcards
How should we contact the flight attendant in an emergency?
Turn the audio panel selector knob to PA, push the EMER call switch light to generate 3 high/low chimes and a flashing red light on the FA overhead panel
What indication do we get if the FA is calling the flight deck because of an emergency in the cabin?
We hear one high/low chime and the EMER call switch light will be flashing
How do we know if the company is trying to contact us?
An ACARS message or “SELCAL, SELCAL” voice aural and a SELCAL advisory EICAS message
How many Air Data Computers (ADC) are installed?
2
How many AHRS or IRS computers are installed?
2
In MAG mode, how long does it take the AHRS system to initialize?
30-70 seconds
In DG mode, how long does it take the AHRS system to initialize?
10-11 minutes
From which source do the captains flight instruments receive AHRS information?
AHRS 1 or IRS 1
From which source do the FO’s flight instruments receive AHRS information?
AHRS 2 or IRS 2
From which source do the captains flight instruments receive pitot/static information ?
System #1, pitot/static tube on left side of nose
From which source do the FO’s flight instruments receive pitot/static
Information?
System #2, pitot/static tube on right side of nose
From which source does the integrated standby instrument receive pitot/static information?
System #3, standby pitot under captains side window and two alternate static ports, one on left and one on right side.
Where is the TAT probe located?
Under FO’s side window
What is the definition of Total Air Temperature?
The temperature of the air corrected for compressibility and friction caused by high speed
On the ground with the probe heat ON, which probes are heated?
All pilot probes are heated half way, all others are fully heated except the TAT probe which is not heated on the ground.
In flight, which probes are heated?
All are fully heated regardless of probe heat switch position
Is there a LOC and GS indication on the standby attitude indicator?
Yes, referencing NAV1
When and where will the radio altitude information appear?
0-2500 AGL
Indicated in green below the altitude tape
What does the sorry trend vector indicate?
Predicted airspeed i n 10 seconds if no changes are made
When and where will the MACH readout appear?
Appears when accelerating through 0.45 MACH. Disappears when decelerating through 0.4 MACH. Appears just above the airspeed tape in white.
What does the green line on the airspeed tape indicate?
1.27 Vs based on current configuration. Not accurate at high altitudes.
Where is the slip and skid indicator located?
A rectangle located just under the sky pointer
How many flight directors are installed?
2
How many autopilots are installed?
1
