MEA723
Evaluate aircraft pneumatic systems


Application

This unit of competency applies to pneumatic air supply, air cycle air conditioning, pressurisation, anti-ice and actuating systems, and their components. It involves evaluation of systems and components for compliance with design and performance standards and with airworthiness regulatory requirements within both civil and military environments.

Also covered is documentation of the evaluation process within management systems, such as configuration management (CM) and integrated logistic support (ILS).

It is suitable for people working as paraprofessionals within aircraft design teams, within the engineering departments of aircraft maintenance organisations or employed within Continuing Airworthiness Management Organisations (CAMOs) and Approved Engineering Organisations (AEOs), and for those pursuing qualifications or careers in those fields.

This unit is used in workplaces that operate under the airworthiness regulatory systems of the Australian Defence Force (ADF) and the Civil Aviation Safety Authority (CASA).


Elements and Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1.

Determine scope of aircraft pneumatic system applications for evaluation

1.1

Confirm and apply safe working practices relating to aircraft pneumatic systems

1.2

Determine parameters and context of applications and purpose of evaluation

1.3

Confirm personal functions and responsibilities, team and support functional group interdependencies and communications

1.4

Confirm that tasks and responsibilities are appropriate to qualifications and delegations and that appropriate support, including technical and professional assistance, is available

1.5

Determine chain of responsibility for the activity evaluation, reporting arrangements and timelines

1.6

Identify work health and safety (WHS) and regulatory requirements with particular emphasis on safety, codes of practice, performance requirements and standards, including airworthiness regulatory requirements for pneumatic systems, risk management and organisational procedures

2.

Identify principles and techniques required for evaluation of aircraft pneumatic system applications

2.1

Identify features and functions of aircraft pneumatic systems and components

2.2

Review aircraft pneumatic system design and layout requirements and techniques

2.3

Identify system electrical control power requirements

3.

Evaluate aircraft pneumatic system applications

3.1

Evaluate system requirements and operating environment

3.2

Evaluate suitability of components

3.3

Evaluate suitability of aircraft pneumatic systems and components, including control, indication and interface with other systems

3.4

Evaluate application for compliance with WHS Acts, regulations, codes, directives and standards/specifications, including those related to risk management

4.

Report results

4.1

Report results of scoping, principles and techniques identification and evaluation of applications

4.2

Provide documentation, such as system schematics, wiring diagrams and data required by CM and/or ILS

Evidence of Performance

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria under the specified conditions of assessment, and must include:

identifying WHS, regulatory and electrical safety requirements, risk management procedures, features and functions of aircraft pneumatic systems and components, and system design principles and techniques, including:

performance and operating environment

system control

indicating and circuit protection requirements

interface requirements between aircraft pneumatic systems and other systems, including electrical power distribution

determining and confirming:

parameters and context of tasks

chain of responsibility

personal functions and responsibilities

team and support functional group interdependencies and communications

appropriate qualifications and delegations

appropriate support, including technical and professional assistance

investigating associated CM and ILS requirements and drafting required data

assessing and applying:

basic aircraft pneumatic system performance analysis and design procedures

design standards

regulatory requirements

graphics skills and techniques

evaluating system components and specifications against system design and operating criteria

reporting and documenting results of scoping, principles and techniques identification and evaluation of applications.


Evidence of Knowledge

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

features and layout of aircraft pneumatic systems, including control, indication and interface with other systems:

bleed air and air pumps

air cycle air conditioning

pressurisation

anti-ice

landing gear retraction

brakes

basic design principles for:

pneumatic air source and distribution systems and components

air cycle air conditioning systems and components

pressurisation systems and components

anti-ice systems and components

landing gear retraction systems, including actuators and mechanical linkages

brakes and system components

interface with the aircraft electrical and instrument systems

wiring types, standards and specifications

performance and operating environment effects

airworthiness regulator design standards

compliance requirements of the WHS Act and regulations, codes of practice, standards and risk assessment

scope of trade, technical and professional support services required in aircraft pneumatic system applications

management data interface with CM and ILS.


Assessment Conditions

This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is, the candidate is not in productive work, then a simulated working environment must be used that reflects realistic workplace situations and conditions.

The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team.

Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability.

Assessment methods must be by direct observation of tasks and include questioning on underpinning knowledge to ensure its correct interpretation and application.

Assessment may be applied under project-related conditions (real or simulated) and require evidence of process.

Assessment must confirm a reasonable inference that competency is able not only to be satisfied under the particular circumstance, but is able to be transferred to other circumstances.

Assessors must be satisfied that the candidate can competently and consistently:

identify and apply WHS, regulatory and risk management procedures

determine parameters and context of tasks, personal, team, licensed technical and professional assistance and support, personnel functions and responsibilities, and chain of responsibility

investigate sustainability implications of aircraft pneumatic system applications as specified in CM and/or ILS requirements

assess and apply basic aircraft pneumatic system design and maintenance/repair requirements, and graphics skills and techniques

evaluate aircraft pneumatic systems and components for compliance with WHS and airworthiness regulatory requirements

report and document results, including provision of CM and ILS input data.

Assessment may be in conjunction with assessment of other units of competency where required.

Assessors must satisfy the requirements of the National Vocational Education and Training Regulator (Australian Skills Quality Authority, or its successors).


Foundation Skills

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.


Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Aircraft pneumatic systems include:

Pneumatic air source and distribution

Air cycle air conditioning

Pressurisation

Anti-ice

Landing gear retraction

Brakes

Interfaces with other aircraft systems and with electrical and instrument systems

Aircraft pneumatic system components include:

Air pumps

Engine bleed air valves

Filters

Valves

Heat exchangers

Pressurisation outflow valves

Pressurisation safety valves

Pressurisation controllers

Actuators

Ducting and plumbing

Reservoirs

Brake units

Mechanical linkages, cables and hardware

Sensors

Indicators, lights and switches

Standards and guidance material include:

ADF AAP7001 .054 Airworthiness Design Requirements Manual

FAR Part 23 Airworthiness Standards for Airplanes in the Normal, Utility, Aerobatic or Commuter Categories

FAR Part 25 Airworthiness Standards for Airplanes in the Transport Category

FAR Part 27 Airworthiness Standards for Rotorcraft in the Normal Category

FAR Part 29 Airworthiness Standards for Rotorcraft in the Transport Category

EASA CS-23 Certification Specifications for Aeroplanes in the Normal, Utility, Aerobatic or Commuter Categories

EASA CS-25 Certification Specifications for Airplanes in the Transport Category

EASA CS-27 Certification Specifications for Rotorcraft in the Normal Category

EASA CS-29 Certification Specifications for Rotorcraft in the Transport Category

CASA AC 21-99 Aircraft Wiring and Bonding

FAA AC 43-13-1B Acceptable Methods, Techniques and Practices – Aircraft Inspection and Repair

Configuration management (CM)

CM is a process for control and documentation of the design and development process and for the management of system, component and software throughout the service life

Integrated logistic support (ILS)

ILS is an integrated approach to the management of logistic disciplines originally developed for the management of military systems from design concept to final disposal at life-of-type. It covers:

reliability engineering, maintainability engineering and maintenance planning

supply and support

support and test equipment

manpower and personnel

training and training support

technical data and publications

computer resources support

facilities

packaging, handling, storage and transportation

design interface

Appropriate technical and professional assistance includes:

Assistance from individuals with CASA maintenance certification licenses or those with supervisory authorisations in the ADF regulatory system

Professional support from engineers employed within:

organisations with CASA continuing airworthiness management or maintenance approvals

approved engineering organisations under the ADF regulatory system

Engineers employed within organisations recognised by overseas airworthiness organisations

WHS, regulatory requirements and enterprise procedures include:

WHS Acts and regulations

Relevant standards

Industry codes of practice

Risk assessments

Registration requirements

Safe work practices

Civil Aviation Safety Regulations (CASRs)

AAP7001 .053 ADF Technical Airworthiness Management Manual

Overseas airworthiness authorities, where applicable, e.g. Federal Aviation Administration, Transport Canada, European Aviation Safety Agency


Sectors


Competency Field

Aeronautical engineering