Flight Instruments/ Avionics Flashcards
What approaches are approved using the ISI for navigation?
ILS or LOC only
What type of approaches cannot be flown on the ISI?
Back Course approaches are prohibited.
The ISI is not capable of performing NDB, VOR, or FMS approaches.
Only ILS or LOC.
Where does the ISI get its air data and attitude reference?
From a dedicated ADC and AHRS.
How long is the ISI powered after generator power is lost?
3.5 hours
AHRS takes how long to initialize on the ground?
40 seconds in MAG mode and 4.5 minutes in HDG mode
In the event of a Left MFD failure where does the EICAS auto transfer to?
3 MFD
What are the indications of a single AHRS / IRS failure and can the data be retrieved?
A red boxed attitude flag “ATT” and /or a red boxed heading flag “HDG”;
the data can be retrieved using the reversion panel - “ATT/HDG” Switch
What are the indications of a single ADC failure and can the data be retrieved?
Red air data flags will appear for invalid airspeed, altitude, or vertical speed; the data can be retrieved using the reversion panel
In the event the Left PFD were to fail can the information be reverted or compressed and if so how do you do it?
Yes; by using the reversion panel and selecting Left Displays to MFD REV
You are taxiing for takeoff and you get a HDG Comparator that will not correct.
Can you depart?
Possibly, refer to the QRH Vol 1 supplemental section for checklist guidance.
When flying in RNP airspace, the position error should be less than the RNP value what percentage of the time?
95%
How can we tune the radios?
Either CDU or either MFD via the DCP
How do you accurately read the standby compass?
Turn the Windshield/Window heat off
Where are maintenance interphone panels located?
Left hand side nose compartment area and Aft equipment bay
How are SVS and FPV selected?
REF page 2
