Aircraft Electronics and Systems

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What is the primary function of the Central Maintenance Computer (CMC)?

To control the turbine engine

To display only warning messages

To store aerodynamic data

To acquire and process data from BITE memories of system computers (correct)

What is the purpose of the Multipurpose Control and Display Units (MCDUs)?

To troubleshoot only BITE function issues

To display only warning messages

To control only turbine engines

To control interrelated systems and display relevant output messages (correct)

In which mode can the operator initiate self-tests via the MCDU?

Menu mode (correct)

Warning mode

Normal mode

Fault mode

What is recorded by the Central Maintenance System (CMS) in Normal mode?

Fault messages generated by the Flight Warning Computers (FWC) and failure information produced by the BITE function Signup and view all the answers

Where is the fault data memorized in Normal mode?

In both the system computers and the CMCs Signup and view all the answers

When is the Menu mode of the Central Maintenance System available?

Only on the ground Signup and view all the answers

What is displayed on the data loader LCD during the transfer process?

TRANSFER IN PROG Signup and view all the answers

What is the capacity of a standard 3.5-inch disk?

1.44 MB Signup and view all the answers

What type of media are used by newer data loaders?

PCMCIA cards and USB sticks Signup and view all the answers

What is loaded into the target hardware using a Portable Data Loader (PDL) or an Airborne Data Loader (ADL)?

Field Loadable Software Signup and view all the answers

What should be issued by line/base maintenance staff after loading a Loadable Software Aircraft Part (LSAP)?

Certificate of Release to Service Signup and view all the answers

What should be recorded in the Aircraft Configuration List (ACL)?

Loading FLS Signup and view all the answers

What is the primary tool used to select and update system software in the Boeing 777 aircraft?

Cursor Control Device (CCD) of the Maintenance Access Terminal (MAT) Signup and view all the answers

What is the consequence of a software mismatch or incorrect loading procedures?

A disastrous sequence of events Signup and view all the answers

When can software downloads be accomplished?

In flight and on the ground Signup and view all the answers

What is the purpose of the data loader selector switch?

To select the computer to receive the software Signup and view all the answers

What is the importance of following maintenance manuals when loading software?

It is very important to avoid software mismatches Signup and view all the answers

What happens to the data after the computer acknowledges the request from the MCDU?

The data is sorted into files Signup and view all the answers

What is the main benefit of having a digital electronic library system in an aircraft?

Reduced cockpit paperwork Signup and view all the answers

What type of information can be accessed through the digital electronic library system?

Maintenance information, checklists, and cabin management tools Signup and view all the answers

What is the purpose of having a centralized system to determine the equipment and software configuration of each aircraft?

To ensure regulatory compliance Signup and view all the answers

How does the digital electronic library system interface with the aircraft's systems?

Through the flight management system Signup and view all the answers

What is an example of how the digital electronic library system can assist in an emergency situation?

By producing relevant checklists and operations manual pages Signup and view all the answers

What format did airlines previously use to receive operational documentation?

CDs from different sources Signup and view all the answers

What is a key feature of Class 3 EFBs that differentiates them from Class 1 and Class 2 EFBs?

They can accommodate moving-map software with own-ship position Signup and view all the answers

What is the purpose of the Display Unit (DU) in an EFB system?

To operate as a computer monitor and input device Signup and view all the answers

How can the flight crew interact with the EFB via the Display Unit (DU)?

By pushing buttons on the DU bezel or by using a touch-screen Signup and view all the answers

What is a unique feature of each EFB system in a Class 3 system?

They are independent from each other Signup and view all the answers

What are two optional features that the EFB system can be interfaced with?

Cabin surveillance cameras and the aircraft printer Signup and view all the answers

What is the primary goal of the EFB system in the flight deck?

To enhance the quality of information available to the crew Signup and view all the answers