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Evidence Guide: MEA353A - Maintain basic light aircraft engines and propellers

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEA353A - Maintain basic light aircraft engines and propellers

What evidence can you provide to prove your understanding of each of the following citeria?

Inspect piston engine system and components/systems

  1. Isolation tags already attached to the system or related systems are checked and aircraft/engine configured for safe system inspection and operation in accordance with applicable maintenance manual
  2. Piston engineand components/systems are visually or physically checked for external and internal signs of defects in accordance with applicable maintenance manual
Isolation tags already attached to the system or related systems are checked and aircraft/engine configured for safe system inspection and operation in accordance with applicable maintenance manual

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Piston engineand components/systems are visually or physically checked for external and internal signs of defects in accordance with applicable maintenance manual

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test piston engine

  1. Aircraft and engine are correctly prepared in accordance with applicable maintenance manual
  2. Assistance is provided with engine and/or system operation during prescribed test procedures to establish serviceability and correct function in accordance with applicable maintenance manual
Aircraft and engine are correctly prepared in accordance with applicable maintenance manual

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assistance is provided with engine and/or system operation during prescribed test procedures to establish serviceability and correct function in accordance with applicable maintenance manual

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Troubleshoot piston engine

  1. Available information from maintenance documentation and inspection and test results is used, where necessary, to assist in fault determination
  2. Maintenance manual fault diagnosis guide and logical processes are used to ensure efficient and accurate troubleshooting
  3. Specialist advice is obtained, where required, to assist with the troubleshooting process
  4. Piston engine faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required
  5. Fault rectification requirements are determined to assist in planning the repair
Available information from maintenance documentation and inspection and test results is used, where necessary, to assist in fault determination

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintenance manual fault diagnosis guide and logical processes are used to ensure efficient and accurate troubleshooting

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Specialist advice is obtained, where required, to assist with the troubleshooting process

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Piston engine faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Fault rectification requirements are determined to assist in planning the repair

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Remove piston engine and engine system components

  1. Aircraft is prepared and supported and rendered safe in accordance with the applicable maintenance manual and isolation tags are fitted, where necessary, to ensure the safety of personnel and freedom from damage during engine removal
  2. Removal is carried out in accordance with the applicable maintenance manual
  3. Engine is tagged and prepared for transport or storage in accordance with the specified procedures
  4. Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
Aircraft is prepared and supported and rendered safe in accordance with the applicable maintenance manual and isolation tags are fitted, where necessary, to ensure the safety of personnel and freedom from damage during engine removal

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Removal is carried out in accordance with the applicable maintenance manual

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Engine is tagged and prepared for transport or storage in accordance with the specified procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Required maintenance documentation is completed and processed in accordance with standard enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Install piston engine and engine system components

  1. Engine to be installed is checked to confirm correct part or model numbers, modification status and serviceability
  2. Installation is carried out in accordance with the applicable maintenance manual
  3. Support/safety equipment is removed at the appropriate time to ensure personnel safety and freedom from structural damage
  4. Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
Engine to be installed is checked to confirm correct part or model numbers, modification status and serviceability

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Installation is carried out in accordance with the applicable maintenance manual

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Support/safety equipment is removed at the appropriate time to ensure personnel safety and freedom from structural damage

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Required maintenance documentation is completed and processed in accordance with standard enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Inspect and maintain fixed pitch propeller

  1. Engine is rendered safe for propeller inspection in accordance with maintenance manual or enterprise procedures
  2. Fixed pitch propeller is inspected for security, damage and deterioration in accordance with the applicable maintenance manual
  3. Metal propeller nicks and dents within damage limits are blended out in accordance with maintenance manual procedures
Engine is rendered safe for propeller inspection in accordance with maintenance manual or enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Fixed pitch propeller is inspected for security, damage and deterioration in accordance with the applicable maintenance manual

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Metal propeller nicks and dents within damage limits are blended out in accordance with maintenance manual procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Remove fixed pitch propeller

  1. Engine is rendered safe and the aircraft is prepared for propeller removal in accordance with maintenance manual or enterprise procedures
  2. Propeller is removed in accordance with maintenance manual procedures
  3. Removed propeller is tagged and prepared for transport or storage in accordance with specified procedures
  4. Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
Engine is rendered safe and the aircraft is prepared for propeller removal in accordance with maintenance manual or enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Propeller is removed in accordance with maintenance manual procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Removed propeller is tagged and prepared for transport or storage in accordance with specified procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Required maintenance documentation is completed and processed in accordance with standard enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Install fixed pitch propeller

  1. Engine is rendered safe and the aircraft is prepared for propeller installation in accordance with maintenance manual or enterprise procedures
  2. Propeller to be installed is checked to confirm correct part or number, modification status and serviceability
  3. Installation is carried out in accordance with the applicable maintenance manual
  4. Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
Engine is rendered safe and the aircraft is prepared for propeller installation in accordance with maintenance manual or enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Propeller to be installed is checked to confirm correct part or number, modification status and serviceability

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Installation is carried out in accordance with the applicable maintenance manual

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Required maintenance documentation is completed and processed in accordance with standard enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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 hand skills, use maintenance publications and engine and system theory knowledge to maintain fixed pitch propellers and to inspect, test, troubleshoot, remove and install piston engines and engine system components on fixed or rotary wing aircraft 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 inspection, testing, troubleshooting and removal and installation tasks (including the timely involvement of supervisor or other trades) associated with engines, engine systems and fixed pitch propellers. It is essential that system testing procedures take into account all safety precautions associated with piston engine system operation, and that awareness be demonstrated of dual inspection requirements associated with work on engine controls.

Evidence of transferability of skills and knowledge related to inspection, testing and troubleshooting is essential. This may be demonstrated through application across a number of engine systems or types and propellers made from different materials. Ability to interpret inspection procedures and specifications (allowable limits) and apply them in practice is critical. The application of testing procedures and functional rigging checks should also indicate knowledge of system operation. Engine system operation knowledge, the relationship of individual components and the links with other systems will be necessary to supplement evidence of ability to carry out rigging checks and troubleshoot the system within the limits of the aircraft/system fault-finding guide 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 at least one item from each of Groups 1 to 6 listed in the Range Statement (Group 6 may be omitted where not applicable to the enterprise), and on at least one type of fixed pitch propeller. 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 tools and equipment specified in maintenance documentation. It is also expected that general purpose tools and test equipment found in most routine situations would be used where appropriate.

Method of assessment

Guidance information for assessment

Required Skills and Knowledge

Required skills

Look for evidence that confirms skills in:

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

using relevant maintenance documentation and aircraft manuals

recognising external and internal signs of defects in piston engines, components and system components visual/physical inspection

assisting with testing of piston engine and engine system operation, be able to operate systems, monitor indications, record parameters and recognise correct function

compiling engine condition monitoring records

rigging and adjusting engine controls and systems

using fault diagnosis guides and equivalent data to accurately and efficiently troubleshoot the causes of unserviceabilities in piston engines and engine systems, clearly record details and identify the required rectification actions

correctly removing and installing piston engine, engine components and fixed pitch propellers, including spinners

inspecting propellers for security, damage and deterioration

blending out metal propeller nicks and dents that are within maintenance manual limits

Required knowledge

Look for evidence that confirms knowledge of:

OHS procedures associated with engine and propeller maintenance, including lifting and handling of heavy objects

how to obtain MSDS

use of PPE

relevant maintenance manuals

relevant regulatory requirements and standard procedures

fault diagnosis techniques

piston engine and engine system layout and operation:

four stroke engine theory of operation and performance

cylinder configurations

construction (components and materials)

carburettors and air induction systems

fuel injection systems

fuels and their characteristics

ignition systems

lubricating systems and lubricants

cooling systems

exhaust systems

accessory drives and mounts

normally aspirated piston engine maintenance requirements and troubleshooting procedures

system component operation, including electrical and instrument system interfaces:

magnetos and ignition harnesses

spark plugs

fuel pumps

fuel filters

oil pumps

oil filters

oil tanks

vacuum pumps

generators

starter motors

oil pressure gauges (direct reading)

temperature gauges (direct reading)

tachometers

manifold pressure gauges

maintenance requirements and troubleshooting procedures

removal and installation procedures for piston engines and engine components:

removal procedures and handling

control linkages

electrical wiring

engine instrument connections

installation and rigging

ground running

system component removal, installation and system testing

propellers, materials and damage and deterioration criteria:

fixed pitch propeller types, terminology and theory:

tractor/pusher

matching to engine and aircraft

leading edge/trailing edge

blade stations

forces acting on a propeller

propeller balance

materials and construction methods:

metal propeller metals, construction and surface protection

wooden propeller materials, construction and surface protection

composite propeller materials, construction and surface protection

damage and deterioration

methods of blending out of minor damage to metal propellers

propeller removal and installation procedures

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.

Note

Range statements listed below are numbered to facilitate specification of the assessment requirements included in the Evidence Guide

Piston engines and components/systems

Piston engines and components/systems may include:

1. Normally aspirated engine (all types), main components and accessories/drives

2. Control system

3. Starter system

4. Fuel, air systems

5. Exhaust system

6. Oil system (if dry sump)

Engine and/or system operation

Engine and/or system operation:

testing of engines fitted to helicopters (where auxiliary drive is not available) may be carried out through the applicant directing a pilot qualified on type

Troubleshooting

Troubleshooting involves the use of test sets, downloaded maintenance data and fault-finding charts or similar, to line replacement level

Fixed pitch propellers

Fixed pitch propeller may include a spinner and the propeller may be made from:

metal

composite

wood

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