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Evidence Guide: MEA309C - Inspect, test and troubleshoot aircraft hydro-mechanical and landing gear systems and components

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

 

MEA309C - Inspect, test and troubleshoot aircraft hydro-mechanical and landing gear systems and components

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

Inspect hydro-mechanical systems and components

  1. Isolation tags already attached to the system or related systems are checked and aircraft configured for safe system inspection and operation in accordance with specified procedures
  2. Hydro-mechanical system and system components are visually or physically checked for external signs of defects in accordance with specified procedures
Isolation tags already attached to the system or related systems are checked and aircraft configured for safe system inspection and operation in accordance with specified procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Hydro-mechanical system and system components are visually or physically checked for external signs of defects in accordance with specified procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Inspect landing gear systems and components

  1. Isolation tags already attached to the system or related systems are checked and aircraft configured, including jacking, where necessary, for safe system inspection and operation in accordance with specified procedures
  2. Landing gear system and system components are visually or physically checked for external signs of defects in accordance with specified procedures
Isolation tags already attached to the system or related systems are checked and aircraft configured, including jacking, where necessary, for safe system inspection and operation in accordance with specified procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Landing gear system and system components are visually or physically checked for external signs of defects in accordance with specified procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test hydro-mechanical and landing gear systems

  1. The aircraft and hydro-mechanical systems are correctly prepared in accordance with specified procedures for the application of power
  2. Power is applied and system functionally tested in accordance with specified procedures for evidence of malfunction or leaks
  3. System calibration or adjustments are performed in accordance with specified procedures
The aircraft and hydro-mechanical systems are correctly prepared in accordance with specified procedures for the application of power

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Power is applied and system functionally tested in accordance with specified procedures for evidence of malfunction or leaks

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

System calibration or adjustments are performed in accordance with specified procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare for troubleshooting

  1. Relevant maintenance documentation and modification status, including system defect/ service difficulty reports where relevant, are interpreted to identify an unserviceability
Relevant maintenance documentation and modification status, including system defect/ service difficulty reports where relevant, are interpreted to identify an unserviceability

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Troubleshoot hydro-mechanical and landing gear systems

  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. Hydro-mechanical and landing gear system 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 or adjustment
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:

 

 

 

 

 

 

 

Hydro-mechanical and landing gear system 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 or adjustment

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 inspect, test and troubleshoot a range of hydraulic and fuel system and landing gear components that are representative of the scope of the listed variables in accordance with relevant maintenance manual instructions while applying all relevant OHS procedures and standard procedures. Coverage of brakes and struts/oleos are not required where the aircraft is rotary wing and is fitted with skids or floats.

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 and troubleshooting applications (including the timely involvement of supervisors or other trades) associated with aircraft hydro-mechanical and landing gear systems and their components.

It is essential that system test procedures take into account all safety precautions applicable to the system being maintained, especially where system operation/switching inter-relates to other systems being maintained. Ability to interpret inspection procedures and specifications (allowable limits) and apply them in practice is critical.

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 aircraft systems or aircraft types. The application of testing procedures should clearly indicate knowledge of system operation, the relationship of individual components and the links with other systems (if applicable) within the limits of the aircraft/system fault finding guide before undertaking any action.

The work plan should take account of applicable safety (including safe handling of heavy components) 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 this unit of competency are being achieved under routine supervision on:

each type of system (Groups 1, 2, 6, 7, 8)

on at least one component of each group listed in the Range Statement against hydro-mechanical system components 3 to 5

landing gear system components 9 to 11

Where the aircraft is rotary wing and is fitted with skids or floats coverage of Groups 6, 7, 8, 10 and 11 is not required and where a rotary wing aircraft is fitted with a fixed undercarriage with wheels coverage of Groups 6 and 7 is not required. 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 procedures, tools and equipment specified in maintenance documentation. It is also expected that general purpose tools, test and ground support equipment found in most routine situations would be used where appropriate. The level of troubleshooting is limited in its application to the use of fault diagnosis guides or other similar information.

Method of assessment

Guidance information for assessment

Required Skills and Knowledge

Required skills

Look for evidence that confirms skills in:

using hand skills and tools in the inspection, adjustment and troubleshooting of hydraulic, fuel and landing gear systems

using hand skills and tools in the inspection, adjustment and troubleshooting of hydraulic and fuel system components

jacking of the aircraft as required for landing gear system inspection, testing and troubleshooting

using hand skills and tools in the inspection, adjustment and troubleshooting of landing gear components

using of maintenance manuals to prepare the aircraft for inspection, testing and troubleshooting of hydro-mechanical and landing gear systems and components

effectively using maintenance documentation and relevant fault diagnosis guides in the troubleshooting process

recognising external defects in hydro-mechanical and landing gear systems and components

applying standard procedures

observing all relevant OHS practices, including the use of MSDS and PPE

Required knowledge

Look for evidence that confirms knowledge of:

standard trade practices relating to tool usage and installation/securing of aircraft hardware

fluid power theory

hydraulic system layout, operation and characteristics (including electrical system interfaces) and system component construction and operation for:

flight control systems including primary controls, flaps, speed brakes and spoilers

landing gear retraction systems

brake and anti-skid systems

nosewheel steering systems

fuel system and component layout, operation and characteristics (including electrical system interfaces) and system component operation and construction

construction and operation of landing gear components, including:

wheel assemblies

skids

floats

struts/oleos

uplocks and downlocks

mechanical linkages

how to configure the aircraft for inspection, testing and troubleshooting of hydraulic, fuel and landing gear systems and components

maintenance requirements and troubleshooting procedures

relevant OHS practices relating to hydraulic systems, fuel systems and landing gear components, including lifting and handling of heavy items

how to obtain MSDS

selection and use of PPE

relevant maintenance manuals

relevant regulatory requirements and standard 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

Systems and system components

Hydro-mechanical systems include:

1. Hydraulic systems

2. Fuel systems

Components of hydro-mechanical systems include:

3. Hydraulic accumulators, filters, reservoirs, valves, pumps, motors, actuators, regulators and direct reading gauges

4. Fuel system filters, valves, pumps, rigid and flexible storage cells/tanks

5. Rigid and flexible pipelines, hoses and fittings

Landing gear systems include:

6. Retraction systems

7. Steering systems

8. Brake systems, including anti-skid, where applicable

Landing gear components include:

9. Wheel assemblies, skids and floats

10. Brake units

11. Struts/oleos

(Additional components of landing gear systems are included in hydro-mechanical system components)

Troubleshooting

Troubleshooting involves the use of fault finding charts or similar, to line replacement level

Application of this unit of competency 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

Electrical interface

The work can include associated electrical loom terminations and/or plugs