7232 Aircraft engine mechanics and fitters  

101317 Remove and install engine system and components

(ก) ความต้องการด้านทักษะ

See Appendix A

(ข) ความต้องการด้านความรู้

See Appendix A

(a) Performance Evidence

     Evidence required to express competency in this unit must be related to and fulfil all of the requirements of the elements and performance criteria under the indicated conditions of assessment, and must include:

• Applying relevant WHS procedures, including lifting and handling of heavy components.

• Using MSDS and PPE.

• Using relevant maintenance documentation and aircraft manuals to:

•  Recognise through visual/physical inspection external and internal signs of defects/damage to gas turbine engine, components and system componentsassist with testing of gas turbine engine and engine system operation.

    The fundamental skills inherent in this unit should be transferable across a range of inspection, testing and troubleshooting tasks (including the timely involvement of supervisors or other trades) associated with gas turbine engines, components and systems. It is crucial that inspection procedures consider all safety precautions applicable to the system/component being maintained.

    It is essential to be able to interpret inspection procedures and specifications (allowable limits) and apply them in practice. This shall be demonstrated through application across a range of systems as specified in the Assessment Conditions.

(b) Knowledge Evidence

      Evidence required to express competency in this unit must be related to and fulfil all of the requirements of the elements and performance criteria and include knowledge of :

• Gas turbine engine layout and operation:

• Intakes.

• Compressors.

• Combustion chambers.

• Turbines.

• Exhaust.

• Thrust reversers.

• Accessory drives.

• Bearings and seals.

• Maintenance requirements.

• System and component operation, including electrical and instrument system interfaces:

• Fuel control and fuels.

• Lubrication and lubricants.

•  Air distribution.

• Starting.

• Ignition.

• Power augmentation.

• Instrumentation:

• Performance indication.

• Condition indication.

• Warning.

• Presentation and interpretation of electronic displays.

• Fire warning and extinguishing.

• control system.

• Engine spin/run procedures, including the operation of auxiliary power units (APUs).

• Engine condition monitoring.

• Relevant WHS practices, including the requirements for the lifting and handling of heavy components.

• How to obtain MSDS.

• Selection and use of PPE.

• Maintenance requirements.

• Relevant maintenance manuals.

• Relevant regulatory requirements and standard procedures.

(c) Assessment recommendation

                 N/A

a) Recommendation

     Different working environments and conditions that may affect performance are admissible in this field. Crucial 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.

(b) Description

Gas turbine engine and components include:

• Engine change unit, main components and accessories/drives.

• Control system and major system components.

• Ignition and starter systems and major system components.

•  Engine fuel system and major system components.

•  Oil system and major system components.

•  N/AAir system and major system components.

Procedures and requirements include:

• Industry standard procedures specified by manufacturers,regulatory authorities or the enterprise.

• The assessment are based on combination of paper exams, interviewing, and practical demonstrations depending on the assessors’ judgement.

• Competency should be assessed in the work environment or simulated work environment using tools and equipment stated in maintenance manuals. It is also expected that applicable general-purpose tools, test and ground support equipment found in most routine situations and used to assist in the inspection process would be used where appropriate.

• The work plan should consider applicable safety and quality requirements according to 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 and performance criteria of the unit of competency are being achieved under routine supervision on each of the following systems and at least one (1) component of each system.

•  Engine change unit, main components and accessories/drives.

•  Control system and major system components.

• Ignition and starter systems and major system components.

•  Engine fuel system and major system components.

• Oil system and major system components.

• Air system and major system components.

    This shall be proven via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide.