TPQI-NET PROFESSIONAL QUALIFICATION

1. รหัสหน่วยสมรรถนะ

AVT-MRTO-247A

2. ชื่อหน่วยสมรรถนะ

Maintain basic rotary wing aircraft systems.

3. ทบทวนครั้งที่

/

4. สร้างใหม่

ปรับปรุง

5. สำหรับชื่ออาชีพและรหัสอาชีพ (Occupational Classification)
	7232 Aircraft engine mechanics and fitters

6. คำอธิบายหน่วยสมรรถนะ (Description of Unit of Competency)

This unit of competency applies hand skills and employs system/component knowledge and applicable maintenance publications and test equipment in the inspection, testing and troubleshooting, and replacement of components of rotor, rotor control systems and airframe systems of basic rotary wing aircraft during scheduled or unscheduled maintenance. This work may be carried out individually or as part of a team.

7. สำหรับระดับคุณวุฒิ

1	2	3	4	5	6	7	8

8. กลุ่มอาชีพ (Sector)
	10 Aircraft Mechanics

9. ชื่ออาชีพและรหัสอาชีพอื่นที่หน่วยสมรรถนะนี้สามารถใช้ได้ (ถ้ามี)
	N/A

10. ข้อกำหนดหรือกฎระเบียบที่เกี่ยวข้อง (Licensing or Regulation Related) (ถ้ามี)
	ICAO Doc 7192 / EASA Part 66

11. สมรรถนะย่อยและเกณฑ์การปฏิบัติงาน (Elements and Performance Criteria)

หน่วยสมรรถนะย่อย (EOC)	เกณฑ์ในการปฏิบัติงาน (Performance Criteria)	รหัส PC (ตามเล่มมาตรฐาน)	รหัส PC (จากระบบ)
102303.01 Inspect and ground test rotor and rotor control systems and components.	102303.01.01 Isolation and warning signs are attached/ installed to the system or related systems and the aircraft configured for safe system inspection and operation according to relevant aircraft publications/maintenance regulations orders and standards and practices. Rotor and rotor control system is visually or physically checked/ inspected for external signs of defects according to relevant aircraft publications maintenance regulations/orders and standards and practices while noticing all relevant work health and safety (WHS) requirements, including the use of material safety data sheets (MSDS) and items of personal protective equipment (PPE). Defects are identified and recorded according to standard enterprise procedures.	102303.01.01	199525
102303.01 Inspect and ground test rotor and rotor control systems and components.	102303.01.02 Aircraft and system are prepared according to relevant aircraft publications/maintenance regulations orders and standards and practices for the operation of engine and rotor system. Rotor and rotor control system are functionally tested according to relevant aircraft publications maintenance regulations/orders and standards and practices for indication of malfunction. System calibration or adjustments are carried out according to relevant aircraft publications/maintenance regulations/orders and standards and practices.	102303.01.02	199526
102303.02 Inspect and test/adjust basic rotary wing airframe systems and components.	102303.02.01 Relevant maintenance documentation and modification status, including system defect reports, where relevant, are employed to identify specific inspection requirements. Isolation tags are checked and aircraft configured for safe system inspection and operation according to the applicable maintenance manual. Airframe system components are visually or physically checked for external signs of defects according to applicable maintenance manual while noticing all relevant WHS requirements, including the use of MSDS and items of PPE. Defects are correctly identified and reported.	102303.02.01	199527
102303.02 Inspect and test/adjust basic rotary wing airframe systems and components.	102303.02.02 Aircraft and system are prepared according to applicable maintenance manual for the application of power/system operation. Airframe system is functionally tested according to maintenance manual for indication of serviceability or malfunction. System adjustment is carried out according to maintenance manual.	102303.02.02	199528
102303.03 Troubleshoot rotor and rotor control systems.	102303.03.01 Available information from aircraft maintenance documentation, inspection and test results is employed to assist in fault determination. Relevant aircraft publication fault diagnosis guide and logical processes are employed to ensure efficient and accurate troubleshooting to line replacement level. Specialist advice is acquired to assist with the troubleshooting process.	102303.03.01	199529
102303.03 Troubleshoot rotor and rotor control systems.	102303.03.02 Rotor and rotor control system faults are located and the causes of the faults are clearly identified and recorded in aircraft maintenance documentation according to standard enterprise procedures. Fault rectification requirements are determined.	102303.03.02	199530
102303.04 Troubleshoot basic rotary wing airframe systems.	102303.04.01 Available information from maintenance documentation, inspection and test results is employed, where necessary, to assist in fault determination. Maintenance manual fault diagnosis guides and logic processes are employed to ensure efficient and accurate troubleshooting. Specialist advice is acquired, where required, to assist with the troubleshooting process.	102303.04.01	199531
102303.04 Troubleshoot basic rotary wing airframe systems.	102303.04.02 Airframe system faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required, according to standard enterprise procedures. Rectification requirements are determined.	102303.04.02	199532
102303.05 Remove and install rotary wing rotor and rotor system components.	102303.05.01 System is rendered safe and prepared according to relevant aircraft publications/maintenance regulations/orders and standards and practices, and isolation and warning signs are installed/attached to ensure personnel safety. Rotor and rotor system component removal is performed according to relevant aircraft publications/maintenance regulations/orders and standards and practices while noticing all relevant WHS requirements, including the use of MSDS and items of PPE. Required aircraft maintenance documentation is accomplished and processed in accordance with standard enterprise procedures. Removed components are labelled, sealed and packaged according to relevant aircraft publications/maintenance regulations/orders and standards and practices.	102303.05.01	199553
102303.05 Remove and install rotary wing rotor and rotor system components.	102303.05.02 Rotor or rotor system component to be installed is checked to ensure correct part or model numbers, modification status and serviceability. Mass balance of rotor blades/head is checked according to relevant aircraft publications/maintenance regulations/orders and standards and practices. Installation is performed according to relevant aircraft publications/maintenance regulations/orders and standards and practices. Support/safety equipment is removed at the appropriate time to ensure personnel safety and freedom from structural damage.	102303.05.02	199554
102303.06 Remove and install rotor control system components.	102303.06.01 System is rendered safe and prepared according to relevant aircraft publications/maintenance regulations/orders and standards and practices, and isolation and warning signs are installed/attached to ensure personnel safety. Rotary wing flight control system component removal is performed according to relevant aircraft publications/maintenance regulations/orders and standards and practices while noticing all relevant WHS requirements, including the use of MSDS and items of PPE. Required aircraft maintenance documentation is accomplished and processed according to standard enterprise procedures. Removed components are labelled, sealed and packaged according to relevant aircraft publications/maintenance regulations/orders and standards and practices.	102303.06.01	199559
102303.06 Remove and install rotor control system components.	102303.06.02 Rotary wing flight control system components to be installed are checked to ensure correct part or model numbers, modification status and serviceability. Installation is performed according to relevant aircraft publications/maintenance regulations/orders and standards and practices. Support/safety equipment is removed at the appropriate time to ensure personnel safety and freedom from structural damage. Required aircraft maintenance documentation is accomplished and processed according to standard enterprise procedures.	102303.06.02	199560
102303.07 Remove and install basic rotary wing airframe system components.	102303.07.01 System is rendered safe according to the applicable maintenance manual and isolation tags are attached, where necessary, to ensure personnel safety. Airframe system component removal is performed according to the applicable maintenance manual while noticing all relevant WHS requirements, including the use of MSDS and items of PPE. Required maintenance documentation is accurately accomplished and correctly processed. Removed components are tagged, sealed and packaged according to specified procedures.	102303.07.01	199565
102303.07 Remove and install basic rotary wing airframe system components.	102303.07.02 Components to be installed are checked to ensure correct part numbers, serviceability and modification status. Mass balance of control surfaces to be installed is checked according to the applicable maintenance manual, if required. Installation is performed according to the applicable maintenance manual. Required maintenance documentation is accomplished and processed according to standard enterprise procedures.	102303.07.02	199566

12. ความรู้และทักษะก่อนหน้าที่จำเป็น (Pre-requisite Skill & Knowledge)
	101301 Interpret work health and safety practices in aviation maintenance 101302 Apply quality standards applicable to aviation maintenance processes 101303 Interpret and use aviation maintenance industry manuals and specifications 101304 Complete aviation maintenance industry documentation 101305 Perform basic hand skills, standard trade practices and fundamentals inaviation maintenance

13. ทักษะและความรู้ที่ต้องการ (Required Skills and Knowledge)

(ก) ความต้องการด้านทักษะ

See Appendix A

(ข) ความต้องการด้านความรู้

See Appendix A

14. หลักฐานที่ต้องการ (Evidence Guide)

(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:

•   Using hand skills, tools and test equipment in the testing, adjustment and troubleshooting of:

•   Rotary wing mechanical control systems.

•   Helicopter airframe systems and components, including rotors and rotor system.

•   Recognising system and component defects/external damage, correct installation and security for the range of airframe systems listed in the Range of Conditions.

•   Removing, installing and rigging of rotor systems and rotor/flight controls.

•   Removing and installing the range of airframe components listed in the Range of Conditions.

•   Checking rotor mass balance.

•   Performing system functional tests and checks to isolate system faults and assess post-maintenance serviceability.

•   Effectively using maintenance documentation and relevant fault diagnosis guides in the troubleshooting process and for component removal and installation.

•   Applying standard procedures.

•   Observing all relevant WHS procedures, including the use of PPE and MSDS.

   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 the, rotors, rotor control systems, airframe systems and components of basic rotary wing aircraft. It is crucial that relevant procedures, requirements for cleanliness and safety precautions are fully perceived, understood and complied with.

   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 rotors, rotor control systems, airframe systems and components 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:

•   WHS precautions relevant to airframe system maintenance, including the lifting and handling of heavy components and how to obtain PPE and MSDS.

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

•   Theory of flight:

•   Airflow.

•   Conditions of flight.

•   Lift and forces.

•   Drag.

•   Rotary flight principles:

•   Terminology relating to:

•   Aerofoils.

•   Main rotor blades.

•   Rotor discs.

•   Rotors (main and tail).

•   Aerodynamic characteristics:

•   Aerofoil design.

•   Forces.

•   Rotor thrust and power requirements.

•   Vortex ring.

•   Autorotation.

•   Helicopter stability.

•   Helicopter dynamic components:

•   Main rotors:

•   Blades.

•   Heads.

•   Linkages.

•   Tail rotors.

•   Swash plates.

•   Transmissions and drive shafts.

•   Helicopter structure and airframe systems:

•   Structure and layout.

•   Engine and transmission.

•   Flight control system layout and operation.

•   Cabin heater system layout and operation.

•   Fuel system layout and operation.

•   Helicopter maintenance procedures and troubleshooting.

•   Relevant maintenance manuals.

•   Relevant regulatory requirements and standard procedures, including requirements for engine and rotor system operation.

(c) Assessment recommendation

N/A

15. ขอบเขต (Range Statement)

(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

   Rotor and rotor control system components include:

•   Main rotor blades and tail rotor blades.

•   Rotor heads, swash plates and tail rotor pitch control assemblies.

•   Mechanical flight control components (collective and cyclic pitch levers, rudder pedals, cables, pulleys, guides, fairleads, bellcranks, rods, torque tubes, chains and sprockets).

•   Main rotor, intermediate or tail rotor gearboxes.

•   Drive shafts and couplings.

Engine and rotor system operation:

•   Must be performed by a qualified pilot.

Airframe systems include:

•   Fuel systems.

•   Cabin heating systems.

Airframe system components include:

•   Rigid or flexible fuel tanks, selector/shutoff valves and rigid or flexible plumbing.

•   Cabin heater ducting and control valves.

Procedures and requirements include:

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

16. หน่วยสมรรถนะร่วม (ถ้ามี)
	N/A

17. อุตสาหกรรมร่วม/กลุ่มอาชีพร่วม (ถ้ามี)
	N/A

18. รายละเอียดกระบวนการและวิธีการประเมิน (Assessment Description and Procedure)

•   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 documentation. It is also expected that applicable general-purpose tools and test equipment found in most routine situations 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 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 and performance criteria of this unit of competency are being achieved under routine supervision on groups listed in the Range of Conditions, as follows:

•   At least one (1) component from each of:

•   Main rotor blades and tail rotor blades.

•   Rotor heads, swash plates and tail rotor pitch control assemblies.

•   Mechanical flight control components (collective and cyclic pitch levers, rudder pedals, cables, pulleys, guides, fairleads, bellcranks, rods, torque tubes, chains and sprockets).

•   Main rotor, intermediate or tail rotor gearboxes.

•   Drive shafts and couplings.

•   Fuel systems.

•   Cabin heating systems.

•   A representative range of components from:

•   Rigid or flexible fuel tanks, selector/shutoff valves and rigid or flexible plumbing.

•   Cabin heater ducting and control valves.

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

หน่วยสมรรถนะ

Maintain basic rotary wing aircraft systems.

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