11.18 Flashcards

1
Q

What does the On board maintenance system ( OBMS ) monitor and record ?

A

Status if systems
( stores faults )

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2
Q

Can the OBMS send fault data to the ground when in flight ?

A

Yes

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3
Q

Whats the primary function of a centra maintenance system ( CMS ) ?

A

Monitors fault status of aircraft systems

Generate fault reports from previous flights

Software updates

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4
Q

What does a Central maintenance system ( CMS ) consist of ?

A

One or two central maintenance computers ( CMC )

Two or three MCDUs

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5
Q

What does the central maintenance computer ( CMC ) input ?

A

System fault monitoring

System operating modes

Flight modes

Commands from flight crew and engineers

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6
Q

What does the “ cross talk “ between both CMCs enable ?

A

For both computers to share and monitor faults within each CMC Incase of a failure within one

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7
Q

Whats the 5 failure fault codes ?

A

—hard failure
—soft failure
—failure warning
—maintenance messages
—maintenance memos

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8
Q

When do you carry a BITE test ?

A

When aircraft is on

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9
Q

Whats a hard and soft failure ?

A

Hard — performance change

Soft — doesn’t change performance

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10
Q

Whats a failure warning ?

A

Provides indications where built in test detects a fault

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11
Q

When does the first leg start with the aircraft ?

A

When its on ground and engines start

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12
Q

What’s a maintenance access terminal ?

A

Allow maintenance staff to access maintenance data to perform tests

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13
Q

Whats the difference between system level BITE and multi - system level BITE ?

A

System level BITE - works for specific system

Multi - system BITE - works with all systems

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14
Q

When can an engineer interact with the CMC ?

A

When the aircraft is in interactive mode

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15
Q

What is a data loading system used for ?

A

Updating software and database or to retrieve aircraft system data

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16
Q

Whats the 4 ways of loading data onto an aircraft ?

A

-disc
-pen drive
-Airport network
-maintenance laptop

17
Q

Whats the two modes a disc drive operated in ?

A

Automatic

Manual

18
Q

Whats the manual mode on a disc drive unit used for ?

A

ONLY download data

19
Q

Whats the automatic mode used for on a disc drive unit ?

A

To both view and download data

20
Q

What is used to protect the aircraft systems from any corrupt network server systems ?

A

Fire wall

21
Q

Should the software being updated or downloaded be approved ?

A

Yes, it should also be carried out from a trained and approved engineer

22
Q

Whats sound on electronic library systems ?

A

All aircraft manuals and service bulletins

23
Q

Whats an electronic flight bag ?

A

Electronic information management device which helps flight crews perform flight management tasks more easily.

( gets rid of paper )

24
Q

When will you get a fault light on the onboard printer ?

A

Our of paper

Self test fail

Front door is opened

25
Q

Whats damage tolerance ?

A

Ability of aircraft’s structure to have damage without catastrophic failure

26
Q

Whats intelligent skin ?

A

Allows you to monitor skin expansion and compressing