Avionics Flashcards
2 Primary Flight Displays (PFD), 2 Navigation Displays (ND), and 2 DU’s that comprise the Engine Instruments and Crew Alerting System (EICAS)
The combination of the 2 PFD’s and 2 ND’s are called
Electronic Flight Instrument System (EFIS)
Display Unit DC power sources
From Left to Right
Left Ess
Right Ess
Left Main
Right Main
Left Main
Right Main
Memory - Left, Right, Left, Right, Left, Right
ESS, ESS, Main, Main, Main, Main
Symbol Generators (Display System Controllers)
How Many and where are they located?
3 Symbol Generators
Located -
SG#1 & 3 - LEER
SG#2 - REER
Display Units provided
SG#1 - DU’s 1 &2
SG#2 - DU’s 5 & 6
SG#3 - DU’s 3 & 4
Power Sources for Signal Generators (DSC’s)
SG#1 - Left Ess
SG#2 - Right Main
SG#3 - Left Main
Avionics Display Failures
DU’s #1 & 2 - Red X’s
SG#1 failed
Avionic Display Failure
DU’s 5 & 6 - red X’s
SG#2 Failed
Avionics Display Failure
DU’s# 3 & 4 - Red X’s -
SG#3 Failed