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Maintenance > Introduction > Flashcards

Introduction Flashcards

1
Q

What does a system of maintenance consist of?

A
  • Technical inspections
  • Tests
  • Overhauls
  • Corrective repair or restoration actions
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2
Q

What is the purpose of the system of maintenance?

A

Ensure a safe, serviceable aircraft that meets the needs of the pilot/owner as well as the airworthiness requirements of the regulator

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3
Q

What is airworthiness?

A

Condition of an aircraft which allows it to operate in a safe manner while it accomplishes its intended function.

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4
Q

What must be done for an aircraft to be considered airworthy?

A

Its design, construction, maintenance and mode of operation has been conducted to approved standards and limitations using competent and approved individuals acting as members of approved organisations

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5
Q

What is aircraft safety??

A

State of aircraft or aircraft condition which minimises chances a fault will occur on the aircraft and minimises the effect of the flyability of the aircraft should the fault occur unpredictably

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6
Q

How do operators measure safety?

A

Air safety incident reports per 1000 flight hours ever month

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7
Q

In the event of accident involving hull loss and/or passenger fatalities, how is this measured?

A

Hull loss accidents per million departures
OR
Rate of fatal accidents per million flying hours

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8
Q

The fatal accidents per million flight hours shows what?

A

Shows how number of fail safe designs on aircraft increase during the same period suggesting that aircraft have been designed and maintained to be responsible for accident rate improvement

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9
Q

What is the aim of SMS?

A

Ensure staff of company complies with aviation regulations

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10
Q

Who is responsible for aircraft safety?

A 
Designer and manufacturer
Regulators
Owner/certificate of registration holder
Security
Technical crew (pilots)
Cabin crew
Maintenance controllers
Maintenance engineers
Trainers
AOC staff
ATC
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11
Q

What is redundancy?

A

Back up structures or systems on aircraft so in event of failure/damage of primary structure/system, a safe and serviceable alternative mechanism is available to prevent catastrophic failure

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12
Q

What are the 3 main redundancy categories?

A

Primary
Secondary
Damage protection

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13
Q

What is structural primary redundancy example?

A

2 spars instead of 1

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14
Q

What is an example of system primary redundancy?

A

Dual ignitions on piston to counter bad reliability of spark plugs

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15
Q

What is an example of secondary redundancies?

A

Back up systems
Crew back up
GPWS and TCAS

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16
Q

What is an example of damage protection redundancy?

A
  • Engine casing (contain rotor blade or disc failure from penetrating structure/systems)
  • Release of engine pods by structure fusing if load on wing is excessive
17
Q

What does system reliability depend on?

A

Quality of design
Engineering of aircraft
Human reliability (training, procedures, situational awareness)

18
Q

When was CASA formed?

A

June 1995

19
Q

What are the 3 principles of regulation?

A

Set of Standards
Legal frame work for compliance
Procedures for implementation of standards

20
Q

When was the Chicago Conference?

A

1944

21
Q

When was ICAO formed?

A

April 1947

22
Q

When did the CAA come into place? What did it replace?

A

1988 replaced Air Navigation Act 1920

23
Q

What’s in the CAA 3 tier system?

A

CAA
CAR (now CASR)
CAO

24
Q

What happens with any new or amended regulations before they can be published?

A

Must be tabled to Parliament

25
Q

What is in CAR 42?

A

Continuing Airworthiness (who can carry out maintenance

26
Q

What is Hardtime (HT)?

A

Preventative maintenance that requires item to be moved and repaired

27
Q

What is On Condition (OC)?

A

Preventative maintenance that requires items to be periodically inspected, checked or tested against standards to see if it can remain in service until the next scheduled inspection

28
Q

What is condition monitoring? (CM)?

A

Non preventative maintenance based on concept that any failure of the item subject to CM cannot have an adverse effect on aircraft safety

29
Q

In MSG3, what are maintenance tasks?

A

Set of actions required to achieve a desired outcome, such as restoring an item to a serviceable condition or carrying out a functional test

30
Q

What CASRs applies to all maintenance?

A

CASR Part 42, 66, 145 and 147

31
Q

What is the proposed 2 Tier System?

A

Civil Aviation Act
Civil Aviation Safety Regulations (made up of Guidance material such as Advisory Circulars [AC] and Procedure Manuals such as Acceptable Means of Compliance Manuals)

32
Q

What was the MSG-1 Philosophy

A

Change based on “On Condition” status of structures, engine or systems

33
Q

What was the MSG-2 Philosophy

A

Concept of “Condition Monitoring”approach to assess any need for maintenance

34
Q

What does MSG stand for?

A

Maintenance Steering Group

35
Q

What is the MSG-3 Philosophy?

A

Using maintenance as a means of restoring safety & reliability back to their inherent design levels through better failure analysis and a continuous airworthiness maintenance program

36
Q

What is Hard Time (HT)

A

A preventative maintenance process that requires an item to be removed from an aircraft and repaired

37
Q

What is On Conditioning? (OC)

A

A preventative maintenance process that requires an item to be periodically inspected, checked or tested against appropriate standards to determine whether it can remain in service until the next scheduled inspection, check or test

38
Q

What is Condition Monitoring? (CM)

A

A non-preventative maintenance process based on the concept that any failure of an item subject to a CM process cannot have an adverse effect on aircraft safety

Maintenance (8 decks)

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