7232 Aircraft engine mechanics and fitters  

101313 Remove and install aircraft hydro-mechanical system and landinggear components

101314 Remove and install aircraft pneumatic system components

101316 Remove and install aircraft fixed wing flight control system 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 all relevant WHS practices, including the use of MSDS and PPE.

• Using maintenance manuals and documentation to prepare the aircraft and identify requirements for inspection of hydraulic, fuel, gaseous, flight control, landing gear and mechanical systems and components.

• Using hand skills and tools in the inspection of hydraulic, fuel, flight control, gaseous and mechanical system components.

• Jacking of the aircraft, as required, for landing gear system inspection.

• Using hand skills and tools in the inspection of landing gear components.

• Recognising external defects in hydraulic, fuel, gaseous, flight control, landing gear and mechanical systems and components. 

    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 aircraft hydro-mechanical, gaseous, mechanical and landing gear systems and their components. It is crucial that system/component inspection procedures consider all safety precautions applicable to the system being maintained, especially where system operation/switching interrelates to other systems 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:

• How to recognise external defects in hydraulic, fuel, gaseous, flight control, landing gear and mechanical system components.

• How to configure the aircraft for inspection of hydraulic, fuel, gaseous, flight control, landing gear and mechanical systems and components.

• Inspection and testing requirements for gears, springs and bearings.

• Standard trade practices relating to tool usage and installation/securing of aircraft hardware.

• Maintenance requirements.

• Relevant WHS practices relating to hydraulic, fuel, gaseous, flight control, landing gear and mechanical system components, including lifting and handling of heavy items.

• How to obtain MSDS.

• Selection and use of PPE.

• Maintenance requirements.

• Relevant maintenance manuals.

(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

Hydro-mechanical systems include:

• Hydraulic systems.

• Fuel systems.

Components of hydro-mechanical systems include:

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

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

• Rigid and flexible pipelines, hoses and fittings.

Landing gear systems include:

    (components of landing gear retraction, steering and braking systems are covered by hydro-mechanical and mechanical system components)

• Retraction systems.

• Steering systems.

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

Landing gear components include:

• Wheel assemblies.

• Brake units.

• Struts/oleos.

Gaseous systems include:

• Pneumatic.

• Air cycle air conditioning.

• Pressurisation.

• Fire-extinguishing.

Gaseous system components include:

• Gauges (direct reading), temperature sensors, pressurisation controllers and temperature controllers.

• Heat exchangers, pressure vessels, condensers, compressors, expansion turbines, humidifiers, valves and actuators.

• Rigid and flexible pipelines and fittings.

• Ducting

Mechanical systems include:

• Mechanical operating and locking systems.

• Mechanical flight control systems or the mechanical elements of power-assisted flight control systems.

Mechanical system components include: 

• Cables, pulleys, guides, fairleads, tension regulators, chains and sprockets.

• Control rods, torque tubes, bellcranks, screwjacks, clutches, springs, bearings and gears.

• Control sticks, wheels, columns, trim wheels or handles, and rudder pedals.

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 procedures, tools and equipment stated in maintenance documentation. It is also expected that applicable general-purpose tools, test and ground support equipment found in most routine situations 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 satisfactionof the workplace assessor that the relevant elements and performance criteria of this unitof competency are being achieved under routine supervision on each type of system andon at least one (1) component of each group listed in the Range of Conditions, as follows:

• Hydraulic systems – a system and at least one (1) component from each of thefollowing groups:

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

• Rigid and flexible pipelines, hoses and fittings.

• Fuel systems – a system and at least one (1) component from each of the 

followinggroups:

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

• Rigid and flexible pipelines, hoses and fittings.

• Landing gear systems – each system:

• Retraction systems.

• Steering systems.

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

• Landing gear components – one (1) each of:

• Wheel assemblies.

• Brake units.

• Struts/oleos.

• Gaseous systems – each listed system:

• Pneumatic.

• Air cycle air conditioning.

• Pressurisation.

• Fire-extinguishing.

• Gaseous system components - at least one (1) component from each of the followinggroups:

• Gauges (direct reading), temperature sensors, pressurisation controllers andtemperature controllers.

• Heat exchangers, pressure vessels, condensers, compressors, expansion turbines.

• Humidifiers, valves and actuators.

• Rigid and flexible pipelines and fittings.

• Ducting.

• Mechanical systems – a system applicable to each of system types:

• Mechanical operating and locking systems.

• Mechanical flight control systems or the mechanical elements of power-assistedflight control systems.

• Mechanical system components - at least one (1) component from each of thefollowing groups:

• Cables, pulleys, guides, fairleads, tension regulators, chains and sprockets.

• Control rods, torque tubes, bellcranks, screwjacks, clutches, springs, bearings andgears.

• Control sticks, wheels, columns, trim wheels or handles, and rudder pedals.

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

•  Individuals being assessed who have already attained the following related units will havemet the Performance Criteria and Range of Conditions variables for Elements listed:

• 101404 Inspect, test and troubleshoot aircraft hydro-mechanical and landing gearsystems and components, for Element 1.

• 101404 Inspect, test and troubleshoot aircraft hydro-mechanical and landing gearsystems and components, for Element 2, provided that the unit was attained on aircraftwith retractable landing gear.

• 101405 Inspect, test and troubleshoot aircraft pneumatic systems and components,for Element 3.

• 101406 Inspect, test and troubleshoot aircraft fixed wing flight control systems andcomponents, for Element 4.

    The Log of Industrial Experience and Achievement records relating to the listed units maybe accepted as also meeting the evidence requirements for this unit in the applicableElements.