Avionics, Flight Instruments Flashcards
Will the flight deck P.A. override the flight attendant P.A.?
Yes
How should we contact the flight attendant an emergency?
Turn the audio panel knob to PA, push the EMER call switch/light to generate three high/low chimes and a flashing red light on the FA’s overhead panel.
What indication do we get if the flight attendant is calling the flight deck because of an emergency in the cabin?
We hear on 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?
Two
How many AHRS or IRS computers are installed?
Two
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 First Officer’s flight instruments receive AHRS information?
AHRS 2 or IRS 2
From which source do the Captain’s flight instruments receive AHRS information?
AHRS 1 or IRS 1
From which source do the Captain’s flight instruments receive pitot/static information?
System # 1, pitot/static tube on left side of nose
From which source do the First Officer’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 probe under Captain’s side window and two alternate static ports, one on left and one on the right side.
Where is the TAT probe located?
Under the First Officer’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 pitot 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 NAV 1
When and where will the radio altitude information appear?
0-2500 ft AGL Indicated in green below the altitude tape
What does the speed trend vector indicate?
Predicted airspeed in 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 0.45 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 skid indicator located?
A rectangle located just under the sky pointer
How many flight directors are installed?
Two
How many autopilots are installed?
One
What does the autopilot follow when engaged?
The selected side flight director which defaults to the Captain’s FD. The XFER button must be selected on the flight control panel to transfer to the First Officer’s FD.
What happens when TOGA is pushed on the ground?
TO lateral mode
TO vertical mode
FMS aligns the aircraft at the end of the runway indicated on legs page
Autopilot disengages
What does the TO lateral mode do?
On the ground, it generates a wings level command. After takeoff, it generates a heading hold command with a 5 degree bank limit using the heading existing at takeoff.
What does TO vertical mode do?
Generates an optimized pitch up attitude for takeoff
What happens when TOGA is pushed in flight?
GA lateral mode
GA vertical mode
Missed approach procedure depiction appears on MFD if instrument approach procedure selected in FMS
Autopilot disengages
What does GA lateral mode do?
Same as TO lateral mode and follows heading flown when TOGA was pushed
What does GA vertical mode do?
Generates a 10 degree pitch up attitude
