Flight Instruments Flashcards
What does the Air Data System provide
air data information to PFDs, flight controls, IESS and other avionics
How many ADSs
5
ADS failure reversionary logic
Automatically reverts
Captain - ADS 1 to ADS 3 to ADS 2
FO - ADS 2 to ADS 3 to ADS 1
How many multi function probes (MFP)
four
what is the Air Data Smart Probe (ADSP)
The combination of MFP and Air Data Computer
The ADSP/TAT will sense and transmit:
- static pressure
- total pressure
- angle of attack
- TAT
What does the Air Data Application (ADA) compute?
final air data (altitude, airspeed, etc.)
What is the IESS and what are its primary functions
Integrated Electronic Standby System; permits the computation and display of:
- attitude
- altitude and associated barometric pressure
- indicated airspeed
What are the IESS’ secondary functions
- mach number
- Vmo/Mmo
- lateral acceleration/slip indication
- vertical speed
- ILS
- barometric pressure
- altitude in meters
How is the IESS powered in an electrical emergency
RAT or by batteries
How long is the IESS alignment phase
about 90 seconds, airplane must not be moved
ADS (1 or 2 or 3) FAIL caution
associated ADS failed
ADS (1, 2, 3, or 4) HTR FAIL caution
at least one of the two smart probes that feed a respective air data system has the associated heater failed
AVNX ASCB FAULT caution
one or more ASCB buses have failed
DISPLAY CTRL FAIL caution
display controller is no longer operating
