Assessor Resource

MEA368A
Shot peen aircraft components

Assessment tool

Version 1.0
Issue Date: May 2024


This unit requires application of hand skills and the use of relevant process documentation to shot peen aircraft components, such as structural components and components of engines, propellers and landing gear shock struts.

Applications include fixed and rotary wing aircraft components.

This unit of competency is part of the Mechanical Certificate IV training pathway. It covers the competencies required to perform peening operations on a range of aircraft components. The unit is used in workplaces that operate under the airworthiness regulatory systems of the ADF and CASA.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

MEA101B

Interpret occupational health and safety practices in aviation maintenance

MEA103B

Plan and organise aviation maintenance work activities

MEA105C

Apply quality standards applicable to aviation maintenance processes

MEA107B

Interpret and use aviation maintenance industry manuals and specifications

MEA108B

Complete aviation maintenance industry documentation

MEA109B

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

Employability Skills

This unit contains employability skills.



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

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 shot peen surfaces of aircraft components to obtain the intensity and coverage specified in process documentation while applying all relevant safety precautions.

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

The underlying skills inherent in this unit should be transferable across a range of shot peening applications associated with aircraft components. It is essential that the relevant procedures are interpreted and applied to ensure quality and safety standards are achieved.

Evidence of transferability of skills and knowledge related to shot peening is essential. This may be demonstrated through application across a number of different aircraft components. Ability to obtain and correctly interpret shot peening process documentation will be necessary before undertaking any action. The work plan should take account of applicable safety and quality requirements in accordance with the industry and regulatory standards.

A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements of the unit of competency are being achieved under routine supervision on a representative range of shot peening tasks. This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide.

Context of and specific resources for assessment

Competency should be assessed in the work environment or simulated work environment using equipment specified in process documentation. It is also expected that general and special purpose tools and test equipment found in most routine situations would be used where appropriate.

Method of assessment

Guidance information for assessment

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Look for evidence that confirms knowledge of:

how to obtain relevant MSDS

the correct use of PPE

OHS procedures

the reasons for shot peening

the types of aircraft component and the materials that are shot peened

shot peening equipment and processes applicable to aircraft components

the uses of different types of shot peening media

the use of process documentation

the types of Almen test strips and their uses

setting up and calibrating equipment for use

preparation of surfaces for peening and cleaning after peening

environmental requirements associated with disposal of used media

Look for evidence that confirms skills in:

applying relevant OHS procedures, including the use of MSDS and applicable items of PPE

using relevant process documentation relating to shot peening of component surfaces to:

select and set up the required shot peening equipment

select and set up the Almen test strip

adjust equipment settings to obtain the required Almen strip distortion

prepare component surfaces for shot peening

shot peen surfaces to obtain the specified intensity and coverage

remove surface contaminants from shot peened surfaces

correctly disposing of waste shot peening media

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.

Shot peening equipment

Peening operations may be carried out using air pressure or rotor propulsion of shot and either fixed or portable shot peen units

Stand-off distance

Stand-off distance can apply to:

nozzle distance from surface for air pressure shot peening processes, or

spindle distance from job for rotor shot peening

Regulated air pressure or spindle speed

Regulated air pressure or spindle speed refers to the specified air pressure applied to the shot nozzle or the specified revolutions per minute (r.p.m.) of the spindle in the rotor peening process

Application of this unit may relate to:

scheduled or unscheduled maintenance

individual or team-related activities

Procedures and requirements

Refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Process documentation is obtained and correctly interpreted 
Shot peening equipment is prepared in accordance with the applicable process 
The correct Almen strip is selected and fitted and equipment set up with the correct stand-off distance and regulated air pressure or spindle speed in accordance with the process documentation 
The process is correctly applied to the Almen strip 
The Almen strip distortion is measured to ensure that it is within the specified tolerance 
Equipment settings are adjusted and the Almen strip test repeated, if required 
Settings that produce specified Almen strip distortion are recorded and the test strip is presented for inspection 
The component is cleaned and masked in accordance with process documentation 
Shot peening is applied in accordance with the process documentation using equipment settings derived from Almen test strip 
The shot peened surface is checked for required density and coverage and re-peened, if necessary 
The shot peened component is checked for cleanliness to ensure that all contaminants have been removed in accordance with the process documentation 
Task completion is recorded in accordance with standard enterprise procedures 
Shot peened component is presented for inspection, along with Almen test strip and completed documentation 
Where applicable, the component is tagged, sealed or packaged in accordance with specified procedures 

Forms

Assessment Cover Sheet

MEA368A - Shot peen aircraft components
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

MEA368A - Shot peen aircraft components

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: