ATA 23 + 30 - COMMUNICATIONS, ICE & RAIN PROTECTION Flashcards
What is an REU?
Remote Electronic Unit, the “heart” of the intercom system.
How many REU are installed?
1
How many VHF antennas?
2
Where is the VHF 1 antenna?
On the belly
Where is the VHF 2 antenna?
on the tail boom
Where are the helmets connected to?
The REU
What is an ACU?
Audio Control Unit
Where are the ACU’s located?
on the slant console
Where would programming of the headset impendance be done?
directly the REU
What power does the REU need?
28V
Where is the external memory connected?
tdirectly in the REU
Where is the REU located?
on the ceiling area inbertween the distribution boxes.
What type is the windshield wiper system?
double arm single blade type
How many electrical motors does the wiper system have?
1
How many gearboxes does the wiper system have?
1
Where is the service connector for crew?
rear r/h side of the fuselage
How would PAX aquire the attention of a pilot?
By a service call button
How is the Back-up switch on the ACU powered?
via an internal secondary power supply from ESS BUS.
If the TEST LED is flashing, this means what?
Test results are a NOGO at PBIT, IBIT and CBIT
Where is the WIPER powered from?
ESS BUS 1
How is the pitot and static heating system monitored?
by the HELIONIX
Where is the Pilot pitot static heating system powered from?
ESS BUS 2
Where is the Co-Pilot pitot static heating system powered from?
SHED BUS 1
