Aeroplane On-Board Maintenance Systems Introduction
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Questions and Answers

What is the primary purpose of the On-Board Maintenance System (OMS)?

  • To enhance passenger comfort
  • To reduce aircraft weight
  • To assist in fault-finding of complex avionics systems (correct)
  • To improve aircraft aerodynamics

    • What is the benefit of using the On-Board Maintenance System (OMS) in aircraft maintenance?

  • Minimised ground time and increased efficiency of maintenance processes (correct)
  • Improved aircraft performance
  • Increased ground time
  • Reduced maintenance costs

    • Which of the following is NOT a component of the On-Board Maintenance System (OMS)?

  • Central Maintenance System (CMS)
  • Data loading system
  • Flight control system (correct)
  • Electronic library system

    • What is the function of the Central Maintenance Computers (CMC) in the Central Maintenance System (CMS)?

    <p>To extract maintenance data concerning aircraft systems</p> Signup and view all the answers

    What is the purpose of the Multipurpose Control and Display Units (MCDU) in the Central Maintenance System (CMS)?

    <p>To display maintenance data and test results</p> Signup and view all the answers

    What activities are supported by the On-Board Maintenance System (OMS)?

    <p>Aircraft maintenance, engineering follow-up, and aircraft reconfiguration</p> Signup and view all the answers

    What happens to the CMC at each leg opening transition?

    <p>It updates the 64 last legs filed in the previous flight report and memorises the new leg heading.</p> Signup and view all the answers

    What is the primary function of the two CMCs in a large modern commercial aircraft?

    <p>To provide redundancy in case of failure.</p> Signup and view all the answers

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

    <p>TRANSFER IN PROG</p> Signup and view all the answers

    What happens when the CMC 1 fails due to a BITE fault?

    <p>The CMC 2 becomes active and considered the master.</p> Signup and view all the answers

    What is the primary purpose of a Portable Data Loader (PDL) or an Airborne Data Loader (ADL)?

    <p>To load software into the target hardware</p> Signup and view all the answers

    How can the CMC be switched in a cockpit?

    <p>Through a pushbutton switch in the cockpit overhead panel.</p> Signup and view all the answers

    What is typically done after loading a Loadable Software Aircraft Part (LSAP)?

    <p>A Certificate of Release to Service is issued</p> Signup and view all the answers

    What is the minimum storage capacity of a CD-ROM used in older data loaders?

    <p>700+ MB</p> Signup and view all the answers

    What is the result of a CMC BITE failure?

    <p>A failure indication is displayed on the MCDU and printer.</p> Signup and view all the answers

    What is the purpose of the Management Unit (MU) in the ACARS?

    <p>To send failure details to the main base.</p> Signup and view all the answers

    Where is a copy of the loaded software typically kept?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of verifying the software on-board after loading?

    <p>To follow established processes and procedures</p> Signup and view all the answers

    What is the estimated number of paper pages in an airliner's integrated text and graphics?

    <p>50 000</p> Signup and view all the answers

    Which of the following is NOT a type of document used for operational requirements?

    <p>Cabin maintenance log books</p> Signup and view all the answers

    What is the main purpose of the electronic library system?

    <p>To provide a centralized repository for operations, training, and maintenance data</p> Signup and view all the answers

    What is another name for the paperless cockpit concept?

    <p>Electronic Flight Bag</p> Signup and view all the answers

    What type of information is included in maintenance applications?

    <p>Maintenance log, illustrated parts list, and fault isolation data</p> Signup and view all the answers

    Which of the following is NOT a subcategory of the electronic library system?

    <p>Pilot training</p> Signup and view all the answers

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

    <p>They can accommodate moving-map software</p> Signup and view all the answers

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

    <p>To operate as a computer monitor and input device</p> Signup and view all the answers

    What is a key benefit of the EFB system?

    <p>It enhances the quality of information available to the crew</p> Signup and view all the answers

    What is a feature of certain EFB applications?

    <p>Touch-screen capability</p> Signup and view all the answers

    What is the purpose of the Cursor Control Device (CCD) in the EFB system?

    <p>To interact with the EFB via the DU</p> Signup and view all the answers

    What is a unique feature of the captain's EFB system compared to the first officer's EFB system?

    <p>They are independent</p> Signup and view all the answers

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