11.21 - Information Systems (ATA 46)

Question 1

What is the main advantage of on-board information system?

Answer 1

They are compact, lightweight and can process and store very large amounts of information.

Question 2

Electronic flight bag is part of what system?

Answer 2

Although the EFB is part of the on board system, it is specifically the Flight Deck Information System.

Question 3

Who uses maintenance information systems, when can they use it and give 3 examples of what’s stored there

Answer 3

Maintenance personnel use maintenance information systems and they use it on the ground.

Maintenance manuals, IPC, WDM and service bulletins

Question 4

Who uses passenger cabin information systems? give 3 examples of what’s stored there

Answer 4

Flight attendants use cabin information systems.

Checklists, procedures, security information, information about safety devices and systems on the aircraft are stored there

Question 5

The electronic flight bags are updated wirelessly from where?

Answer 5

The EFBs can be updated wirelessly from a Terminal Wireless LAN Unit (TWLU), the TWLU continas a radio transmitter and receiver creating a LAN between aircraft and ground network.

The EFB can only be updated wirelessy when the aircraft is parked at the gate.