Aircraft Mechanics: Airplane

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 demonstrate competency in this unit should be of interest and meet all requirements of the elements and performance criteria under the specified conditions assessment, and should include:

          • applying relevant WHS procedures

          • using relevant maintenance documentation and aircraft manuals to:

          • recognise defects during visual inspection of fixed wing flight control systems and system components

          • rig fixed wing flight control systems

          • functionally test the operation of fixed wing flight control systems and recognise system/component malfunction or evidence of incorrect rigging

          • to the extent permitted by applicable fault diagnosis guides, troubleshooting unserviceabilities in fixed wing flight control systems and clearly recording the causes of the unserviceabilities.

          The underlying skills inherent to this unit must be transferable through a series of inspections, testing and troubleshooting applications (including the appropriate involvement of supervisors or other trades) associated with flight systems fixed wing aircraft. It is essential that the test procedures take into account all safety precautions associated with the operation of the flight control system, particularly when / switching interfaces with other systems operating system are maintained, and demonstrated an awareness of double inspection requirements associated with working in the flight controls and systems. Ability to interpret system performance specifications (allowable limits) and apply them in practice is critical and will be demonstrated by applying the full range of systems listed in the Terms evaluation.

(b) Knowledge Evidence

          Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

          WHS precautions relevant to flight control system maintenance

          • standard trade practices relating to tool and test/rigging equipment usage and installation/securing of system components

          • flight control system layout and operation:

          • theory of flight:

          • airflow

          • conditions of flight

          • lift and forces

          • drag

          • wings, tailplane and vertical stabiliser

          • lift augmentation (flaps, slats and slots)

          • aircraft control surfaces and their function (elevator, ailerons, rudder, elevons and trim tabs)

          • spoilers and speed brakes

          • flight control balancing and flutter

          • stability and control and flight control rigging

          • mechanical system layout and operation:

          • cockpit controls

          • cables and cable tensioning

          • pulleys and fairleads

          • bellcranks

          • levers

          • control surface horns

          • screwjacks

          • push/pull rods

          • powered flight controls:

          • system layout and operation

          • component construction and operation

          • electrical and instrument interfaces:

          • flaps

          • trim

          • position indication

          • flight control system maintenance procedures and troubleshooting methods

          • flight control system interfaces with automatic pilot systems

          • relevant maintenance manuals

          • relevant regulatory requirements and standard procedures.

(c) Assessment   recommendation

          N/A

          Assessment  methods

(a) Recommendation

          This field allows different environments and working conditions that can affect the performance. the essential 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) include.

          Flight control systems and system components include:

          • Elevator, aileron and rudder primary flight control systems and associated trim systems

          • Speed brake, spoiler, flap and high lift systems

          • Ailerons, elevators, rudders, trim tabs, speed brakes, spoilers, flaps and slats

          • Actuators – mechanical, hydraulic, pneumatic or electric

          • Mechanical flight control components (cables, pulleys, guides, fairleads, tension regulators, control rods, bellcranks, torque tubes, chains, sprockets, control sticks, wheels or columns, trim wheels or handles, and rudder pedals)

          Procedures and requirements include:

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

(b) Description

          N/A

          The assessment are composed of paper exams , interviews, and practical demonstrations, which the paper exam is the main testing. The selection of interviews and practical demonstrations are depending on the assessors’ judgment. Competition should be assessed in the workplace or simulated work environment, using tools and equipment specified in the aircraft maintenance manual. It is also expected that general purpose tools, test and ground support equipment applicable in most routine situations would be used where appropriate.

          • The application of ground 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 and quality requirements in accordance with the industry and regulatory standards.

          • Assessment conditions must also provide for knowledge of dual inspection requirements to be demonstrated.

          • The following conditions of assessment represent the requirements of the Regulators and maintenance stakeholders and must be rigorously observed.

          • 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 at least one (1) item from each of:

          • elevator, aileron and rudder primary flight control systems and associated trim systems

          • speed brake, spoiler, flap and high lift systems

          • ailerons, elevators, rudders, trim tabs, speed brakes, spoilers, flaps and slats

          • actuators – mechanical, hydraulic, pneumatic or electric

          • mechanical flight control components (cables, pulleys, guides, fairleads, tension regulators, control rods, bellcranks, torque tubes, chains, sprockets, control sticks, wheels or columns, trim wheels or handles, and rudder pedals).

          • This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide (for details refer to the Companion Volume Assessment Guidelines).