Test 4 Flashcards
How many Radio Interface Units are there?
Two
Are radio interface units interchangeable?
No - RIU 1 interfaces with the Ext. Compensator Unit
How many VHF COM transceivers are onboard?
3
How can the radios be tuned?
СТР
CNS
Graphical Tuning (Map)
What ways can the Nav Radios be tuned?
Automatically by FMS
Manually, using СТР
CNS
Graphical Tuning (Map)
The Air Data System includes how Many Air Data Computers?
No standalone ADC
4 ADSPs
What is the primary source of angle-of-attack information?
The 4 ADSPs
AOA Vanes are a backup source
How can we manually change the Air Data source to a display?
Reversion Switch Panel
How do we align the IRUs?
Alignment is automatic using GNSS data
Where are the IRUs located?
In the flight deck
Nbr 1 & 3 - Left Side Console
Nbr 2 - Right Side Console
What are the major functions of the VHF-Nav System?
VOR
ILS- Glideslope, Localizer, Marker Beacon
When is Radio Altimeter active?
≤ 2500 ft AGL
How do we adjust the weather radar settings?
Weather radar controls are on the CTP
What is TSS?
The Traffic Surveillance System
What 2 Systems make up ADS-B?
GNSS and TSS.
How many Flight Management Computers are there?
None.
EMS is an application hosted in IPCS 1 & 2
Primary Component That Controls and Monitors
CMS?
Cabin controller
The Cabin Controller sends it signals to which
2 components?
Zone 1 and 2 boxes
The Zone Boxes send their signals to which components?
Passenger Service Unit
Controllers (PSUCs)
Passwords for CMS Maintenance and IFE Maintenance?
Cdam
3980
How many VHF Comm Transceivers and antennas does the A220 have?
• 3 Transceivers
• 3 Antennas
What are the indications of an incoming SELCAL call?
SELCAL Advisory message
Aural Alert
CALL light illuminates on ACP
In which component is the ACARS function?
Radio Interface Unit #1
What is connected to RIU #1 that makes it unique?
External
Compensation
Unit
What component is part of the CVR system in case of loss of DC ESS BUS 2?
Recorder Independent
Power Supply
How many Emergency Locator Transmitters (ELTs) does the A220 have?
Two (2)
• 1 fixed
• 1 Portable
Which ELT component is giving us problems currently?
The Antenna
What is our primary source of AOA information?
ADSPS - AOA Vanes are
Secondary inputs
How can we manually change the source of data to a display?
Reversion Switch Panel
(Pedestal)
Where is the Weather Radar
Transceiver located?
Under the Radome.
It is part of the antenna.
Receiver - Transmitter Antenna (RTA)
On the FMA - what does the GREEN mode indicate?
Captured or Active mode
On the FMA - what does the WHITE mode indicate?
Armed mode
When can the Emergency Descent Mode be manually engaged?
Aircraft altitude is > 25,000 ft.
When does the Emergency Descent Mode automatically engage?
Cabin altitude is > 14,500 ft.
