7232 Aircraft engine mechanics and fitters

101310 Remove and install pressurisation control system components

101403 Fabricate and/or repair aircraft electrical components or parts

 

(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 allof the requirements of the elements and performance criteria under the indicated conditions ofassessment, and must include:

• Applying relevant WHS practices.

• Using approved maintenance documentation and aircraft publications relating to the pressurisation control system being maintained.

• Recognition of system and component defects/external damage, correct installation, connection of plugs, terminations, attaching hardware (including cabling/harnesses) and security in:

• Cabin altimeters, differential pressure indicators and cabin rate of climb indicators.

• Pressure controllers (manual and automatic).

• Safety switches.

• Applying logic processes, taking and interpreting system measurements, and using test equipment and appropriate wiring diagrams and manuals to accurately and effectively isolate malfunctions in the listed system components.

• Assisting with the performance of pressurisation system testing to isolate system malfunctions and assess post-maintenance serviceability.

    It is crucial that the system testing procedures,requirements forcleanliness and safety precautions relevant to the pressurisation control system being maintained are fully perceived, understood and complied with.

    It is essential to be able to interpret inspectionprocedures and specifications (allowable limits) and apply them in practiceacross a range of inspection, testing andtroubleshooting applications (including the timely involvement of supervisors or other trades).

Transferability evidence of skills and knowledge associated with inspection, testing andtroubleshooting is important. This is to be demonstrated through application across apressurisation control system and its components.



(b) Knowledge Evidence

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

• Component attachment methods.

• The basic layout (block diagram level), function and operation of the listed components and their operation and function within the aircraft pressurisation system, including applicable interface with the outflow and safety valves:

• Cabin altimeters.

• Differential pressure indicators.

• Cabin rate of climb indicators.

• Pressure controllers (manual and automatic).

• Safety switches.

• Basic principles/functions, relating to the listed system components and associated with:

• Basic alternating current (AC) and direct current (DC) circuit theory.

• Digital fundamentals.

• Analogue fundamentals.

• Atmospheric conditions, properties and effect on humans.

• Pressurisation terminology.

• Pressurisation control system maintenance requirements and troubleshooting procedures.

• Relevant WHS practices.

• Relevant maintenance manuals.

• Relevant regulatory requirements and standard procedures.



(c) Assessment recommendation

    N/A

(a) Recommendation

      Different working environments and conditions that may affectperformance are admissible in this field. Crucial operating conditions that may be present (depending on the worksituation, needs of the candidate, accessibility of the item, and local industry and regionalcontexts) are included.



(b) Description

      Pressurisation controlsystems include:

• Cabin altimeters.

• Differential pressure indicators.

• Cabin rate of climb indicators.

• Pressure controllers (manual and automatic).

• Safety switches.

    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 workplace or simulated workplace using tools and equipment stated in the maintenance manuals. It is also expected that general and special purpose tools, and test and ground support equipment would be used where appropriate.

• Before undertaking any action,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. 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 a pressurisation control system and its components. This shall be proven via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide.