• MEA340A - Lay out and set up aircraft systems

MEA340A
Lay out and set up aircraft systems

This unit of competency is part of Diploma and Advanced Diploma training pathways. It covers the basic design and schematic layout of aircraft systems, including mechanical, hydraulic, pneumatic and fuel systems. A basic hydraulic system is set up and operated.

Application

Competency in this unit requires application of basic knowledge of aircraft system design and schematic layout, including the relative advantages of the different types of system. The candidate should be able to select appropriate types of systems for given applications and sketch the schematic layout of systems given a list of components.

A simple hydraulic system will also be set up and operated.


Prerequisites

MEA101B

Interpret occupational health and safety practices in aviation maintenance

MEA107B

Interpret and use aviation maintenance industry manuals and specifications

MEA109B

Perform basic hand skills, standard trade practices and fundamentals in aviation maintenance


Elements and Performance Criteria

1. Select and lay out schematically aircraft mechanical systems

1.1. Mechanical system applications in aircraft design and their relative advantages and disadvantages compared to other system types are identified

1.2. Components of mechanical systems are identified

1.3. A mechanical system is selected for an application, the schematic layout is sketched and all components are labelled

1.4. Mechanical system maintenance requirements are identified

2. Select and lay out schematically aircraft hydraulic systems

2.1. Hydraulic system applications in aircraft design, their operation and their relative advantages and disadvantages compared to other system types are identified

2.2. Aircraft hydraulic fluids, their characteristics and handling precautions are identified

2.3. Components of hydraulic systems are identified and their operation is described in general terms

2.4. A hydraulic system is selected for an application, the schematic layout is sketched and all components are labelled

2.5. Hydraulic system maintenance requirements are identified

3. Select and lay out schematically aircraft pneumatic systems

3.1. Pneumatic system applications in aircraft design, their operation and their relative advantages and disadvantages compared to other system types are identified

3.2. Components of pneumatic systems are identified and their operation is described in general terms

3.3. A pneumatic system is selected for an application, the schematic layout is sketched and all components are labelled

3.4. Pneumatic system maintenance requirements are identified

4. Select and lay out schematically aircraft fuel storage and distribution systems

4.1. Typical fuel storage and distribution systems used in aircraft design are identified.

4.2. Components of fuel storage and distribution systems are identified and their operation is described.

4.3. A fuel storage and distribution system is selected for an application, the schematic layout is sketched and all components are labelled.

4.4. Types of aircraft fuel, their characteristics and handling precautions are identified.

4.5. Fuel storage and distribution system maintenance requirements are identified.

5. Set up and operate a simple hydraulic system

5.1. The hydraulic system is sketched and all components are labelled

5.2. Required components are obtained

5.3. The system is assembled and operated

Required Skills

Required skills

Look for evidence that confirms skills in:

laying out a typical aircraft mechanical system

laying out a typical aircraft hydraulic system

laying out a typical aircraft pneumatic system

laying out a typical fuel storage and distribution system

setting up and operating a basic hydraulic system

applying relevant OHS precautions, including the use of MSDS and PPE

Required knowledge

Look for evidence that confirms knowledge of:

fluid power principles

plumbing identification marking

mechanical, hydraulic and pneumatic aircraft systems, their components and maintenance requirements

the relative advantages and disadvantages of mechanical, hydraulic and pneumatic systems

hydraulic fluid types, characteristics and handling precautions

aircraft fuel storage and distribution systems and components thereof

aircraft fuels, their characteristics and handling precautions

OHS precautions relating to aircraft systems and their operation

Evidence Required

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

A person who demonstrates competency in this unit must be able to apply basic knowledge of aircraft system design and layout for a range of aircraft applications. Competency in this unit cannot be claimed until all prerequisites have been satisfied.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, teacher's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency

Context of and specific resources for assessment

This unit may be assessed off the job in a training environment equipped to provide exposure to the range of system types and provide for the layout, set-up and operation of basic hydraulic systems. The candidate must have access to all tools, equipment, materials and documentation required and must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials. The assessment environment should not disadvantage the candidate.

Method of assessment

Guidance information for assessment


Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Application

Application of this unit may relate to:

individual or team-related activities

Mechanical system applications

Mechanical system applications may include:

flight controls

flap operation

nose wheel steering

landing gear door operation

entrance door mechanisms

Components of mechanical systems

Components of mechanical systems may include:

cables

chains

sprockets

pulleys

fairleads

cable tensioners

gearboxes

screwjacks

rods

universal joints

constant velocity joints

clutches

bearings and bushes

Hydraulic system applications

Hydraulic system applications may include:

flight controls

flap and spoiler operation

landing gear retraction and extension

brakes (including anti-skid)

nose wheel steering

shimmy damping

door operation

Components of hydraulic systems

Components of hydraulic systems may include:

pumps

plumbing

valves (manual and electrically operated)

actuators

motors

check valves

pressure gauges (direct reading and electrical)

electrical control circuit micro switches

reservoirs

accumulators

filters

heat exchangers

Pneumatic system applications

Pneumatic system applications may include:

landing gear retraction and extension

pneudraulic emergency systems for landing gear extension and brakes

engine bleed air

engine starting

anti-icing

de-icing

pressurisation

air cycle air conditioning

Components of pneumatic systems

Components of pneumatic systems may include:

pre-coolers

pressure regulator and shutoff valves

temperature modulating valve

check valves

over-pressure valves

temperature regulating valves

underloading valves

shuttle valves

back pressure valves

outflow valves

moisture separators

chemical driers

filters

mechanical compressors

compressed air bottles

de-icing boots

ducting

Components of fuel storage and distribution systems

Components of fuel storage and distribution systems may include:

integral fuel cells

rigid and flexible fuel cells

external fuel tanks

rigid and flexible plumbing and couplings

manifolds

selector valves

anti-surge valves

anti-gravity valves

fuel quantity indication

fuel flow indication

boost pumps

transfer pumps

filters

strainers

fuel heaters

Required components

Required components may include:

hydraulic rig

manual selector valve

filter

accumulator

check valve

linear actuators

rigid and flexible plumbing


Sectors

Aeronautical engineering


Co-Requisites

Not applicable


Employability Skills

This unit contains employability skills.


Licensing Information

Not applicable.