Parts Catalog for the Diamond DA20-C1 Eclipse

3-18 Issue-3 March 2024 3-19 Issue-3 March 2024 3-20 Issue-3 March 2024 3-21 Issue-3 March 2024 3-22 Issue-3 March 2024 3-23 Issue-3 March 2024 3-24 Issue-3 March 2024 3-25 Issue-3 March 2024 3-26 Issue-3 March 2024 3-27 Issue-3 March 2024 3-28 Issue-3 March 2024 3-29 Issue-3 March 2024 3-30 Issue-3 March 2024 3-31 Issue-3 March 2024 3-32 Issue-3 March 2024 26804 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 Section Page Amendment No. Date Appendices 3-33 Issue-3 March 2024 3-34 Issue-3 March 2024 3-35 Issue-3 March 2024 3-36 Issue-3 March 2024 3-37 Issue-3 March 2024 3-38 Issue-3 March 2024 3-39 Issue-3 March 2024 3-40 Issue-3 March 2024 3-41 Issue-3 March 2024 3-42 Issue-3 March 2024 3-43 Issue-3 March 2024 3-44 Issue-3 March 2024 3-45 Issue-3 March 2024 3-46 Issue-3 March 2024 3-47 Issue-3 March 2024 3-48 Issue-3 March 2024 3-49 Issue-3 March 2024 3-50 Issue-3 March 2024 3-51 Issue-3 March 2024 3-52 Issue-3 March 2024 3-53 Issue-3 March 2024 3-54 Issue-3 March 2024 3-55 Issue-3 March 2024 3-56 Issue-3 March 2024 3-57 Issue-3 March 2024 3-58 Issue-3 March 2024 3-59 Issue-3 March 2024 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26805 Section Page Amendment No. Date Appendices 3-60 Issue-3 March 2024 3-61 Issue-3 March 2024 3-62 Issue-3 March 2024 3-63 Issue-3 March 2024 3-64 Issue-3 March 2024 3-65 Issue-3 March 2024 3-66 Issue-3 March 2024 3-67 Issue-3 March 2024 3-68 Issue-3 March 2024 3-69 Issue-3 March 2024 3-70 Issue-3 March 2024 3-71 Issue-3 March 2024 3-72 Issue-3 March 2024 3-73 Issue-3 March 2024 3-74 Issue-3 March 2024 3-75 Issue-3 March 2024 3-76 Issue-3 March 2024 3-77 Issue-3 March 2024 3-78 Issue-3 March 2024 CHAPTER 4: APPENDICES TO AMCS APPENDICES TO AMCS 4-1 Issue-3 March 2024 4-2 Issue-3 March 2024 4-3 Issue-3 March 2024 4-4 Issue-3 March 2024 4-5 Issue-3 March 2024 4-6 Issue-3 March 2024 4-7 Issue-3 March 2024 4-8 Issue-3 March 2024 26806 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 Section Page Amendment No. Date APPENDICES TO AMCS 4-9 Issue-3 March 2024 4-10 Issue-3 March 2024 4-11 Issue-3 March 2024 4-12 Issue-3 March 2024 4-13 Issue-3 March 2024 4-14 Issue-3 March 2024 4-15 Issue-3 March 2024 4-16 Issue-3 March 2024 4-17 Issue-3 March 2024 4-18 Issue-3 March 2024 4-19 Issue-3 March 2024 4-20 Issue-3 March 2024 4-21 Issue-3 March 2024 4-22 Issue-3 March 2024 4-23 Issue-3 March 2024 4-24 Issue-3 March 2024 4-25 Issue-3 March 2024 4-26 Issue-3 March 2024 4-27 Issue-3 March 2024 4-28 Issue-3 March 2024 4-29 Issue-3 March 2024 4-30 Issue-3 March 2024 4-31 Issue-3 March 2024 4-32 Issue-3 March 2024 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26807 III. TABLE OF CONTENTS CHAPTER 1 REGULATIONS & ACCEPTABLE MEANS OF COMPLIANCE SECTION A TECHNICAL REQUIREMENTS SUBPART A —AIRCRAFT MAINTENANCE LICENCE AEROPLANES AND HELICOPTERS 66.A.1 Scope 66.A.2 Definitions 66.A.3 Licence categories 66.A.5 Aircraft groups 66.A.10 Application 66.A.15 Eligibility 66.A.20 Privileges 66.A.25 Basic knowledge requirements 66.A.30 Basic Experience requirements 66.A.40 Continued validity of the aircraft maintenance licence 66.A.45 Endorsement with aircraft ratings 66.A.50 Limitations 66.A.55 Evidence of qualification 66.A.70 Conversion provisions CHAPTER 2 PROCEDURES FOR CAAB & ACCEPTABLE MEANS OF COMPLIANCE SUBPART A — GENERAL 66.B.01 Scope 66.B.10 CAAB 66.B.15 Acceptable Means of Compliance 66.B.20 Record- keeping 66.B.25 Reserved 66.B.30 Exemptions SUBPART B — ISSUE O F AN AIRCRAFT MAINTENANCE LICENCE 66.B.100 Procedure for the issue of an aircraft maintenance licence by the CAAB 26808 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 66.B.105 Reserved 66.B.110 Procedure for the change of an aircraft maintenance licence to include an additional basic category or subcategory 66.B.115 Procedure for the change of an aircraft maintenance licence to include an aircraft type or group 66.B.120 Procedure for the renewal of an aircraft maintenance licence validity 66.B.125 Procedure for the conversion of licences including group ratings 66.B.130 Procedure for the direct approval of aircraft type training SUBPART C — EXAMINATIONS 66.B.200 Examination by CAAB SUBPART D — CONVERSION OF NATIONAL QUALIFICATIONS 66.B.300 General 66.B.305 Conversion report for national qualifications 66.B.310 Reserved SUBPART E — EXAMINATION CREDITS 66.B.400 General 66.B.405 Credit Report 66.B.410 Examination Credit Validity SUBPART F — CONTINUING OVERSIGHT 66.B.500 Revocation, suspension or limitation of the aircraft maintenance licence CHAPTER 3 APPENDICES Appendix I Basic Knowledge Requirements Appendix II Basic Examination Standard Appendix III Aircraft Type training and Examination Standard, On-the- Job Training Appendix IV Experience requirements for extending a Part-66 Aircraft Maintenance Licence Appendix V Application Form - CAAB Form 19 Appendix VI Aircraft Maintenance Licence CAAB Form 26 CHAPTER 4 APPENDICES TO AMC Appendix I Aircraft Type Ratings for Part-66 Aircraft Maintenance Licence Appendix II Aircraft Type Practical Experience and On-the-Job Training – List of Tasks Appendix IIIEvolution of the competence: Assessment and Assessors evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26809 CHAPTER 1 REGULATIONS & ACCEPTABLE MEANS OF COMPLIANCE (SECTION A) 26810 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 SUBPART A AIRCRAFT MAINTENANCE LICENCE AEROPLANES AND HELICOPTERS 66.A.1 Scope (a) This section defines the aircraft maintenance licence and establishes the requirements for application, and continuation of its validity. 66.A.2 Definitions Within the scope of the basic Regulation, the following definitions shall apply: (a) "Aircraft" means any machine that can derive support in the atmosphere from the reactions of the air other than reactions of the air against the earth's surface; (b) "Certifying staff" means personnel responsible for the release of an aircraft or a component after maintenance; (c) "component" means any engine, propeller, part or appliance; (d) "Continuing Airworthiness" means all of the processes ensuring that, at any time in its operating life, the aircraft complies with the airworthiness requirements in force and is in a condition for safe operation; (e) "Large Aircraft" means an aircraft, classified as an aeroplane with a maximum take-off mass of more than 5700 kg, or a multi-engine helicopter; (f) "maintenance" means any one or combination of overhaul, repair, inspection, replacement, modification or defect rectification of an aircraft or component, with the exception of pre- flight inspection; (g) "organisation" means a natural person, a legal person or part of a legal person. Such an organisation may be established at more than one location within the territory of Bangladesh. (h) "pre-flight inspection" means the inspection carried out before flight to ensure that the aircraft is fit for the intended flight. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26811 66.A.3 Licence categories (a) Aircraft maintenance license includes: - Category A - Category B1 - Category B2 - Category B3 - Category C (b) Categories A and B1 are subdivided into subcategories relative to combinations of aero planes, helicopters, turbine and piston engines. The subcategories are: - A1 and B1.1 Aeroplanes Turbine - A2 and B1.2 Aeroplane Piston - A3 and B1.3 Helicopters Turbine - A4 and B1.4 Helicopters Piston (c) Category B2 The B2 licence is applicable to all aircraft. (d) Category B2L The B2L licence is applicable to all aircraft other than those in Group 1 as set out in Point 66.A.5(1) and is divided into the following ‘system ratings’: — communication/navigation (com/nav), — instruments, — autoflight, — surveillance, — airframe systems. A B2L licence shall contain, as a minimum, one system rating. (e) Categories B3 The B3 licence is applicable to piston-engine non-pressurised aeroplanes of 2 000 kg Maximum Take-off Mass (MTOM) and below. (f) (Reserved) (g) Category C The C licence is applicable to aeroplanes and helicopters. 26812 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 GM 66.A.3 Licence categories Individual aircraft maintenance licence holders need to be restricted to a single category, provided that each qualification requirement is satisfied, any combination of categories may be granted. For the B2L licence, a ‘system rating’ is a rating which gives privileges to release maintenance on the aircraft systems covered by the ‘system rating’ and electrical systems. The sentence ‘shall contain, as a minimum, one system rating’ refers to the fact that the application for a B2L licence should be made for any of the system ratings or any combination of the system ratings specified in 66.A.3. There is no specific order in which the system ratings should be applied for. Any combination of system ratings is possible. The description of systems covered by the different system ratings is provided in Appendix I ‘Basic Knowledge Requirements’ under paragraph ‘2. Modularisation’, subparagraph related to ‘Categories B2 and B2L’. 66.A.5 Aircraft groups For the purpose of ratings on aircraft maintenance licences, aircraft shall be classified in the following groups: 1. Group 1: complex motor-powered aircraft, helicopters with multiple engines, aeroplanes with maximum certified operating altitude exceeding FL290, aircraft equipped with fly-by-wire systems and other aircraft requiring an aircraft type rating when defined as such by the CAAB. The CAAB may decide to classify into Group 2 or Group 3 as appropriate, an aircraft which meets the conditions set out in the first subparagraph, if it considers that the lower complexity of the particular aircraft justifies so. 2. Group 2: aircraft other than those in Group 1 belonging to the following subgroups: - Sub-group 2a : — single turbo-propeller engine aeroplanes — those turbojet and multiple-turboprop aeroplanes classified by the CAAB in this subgroup because of their lower complexity. - Sub-group 2b: — single turbine engine helicopters, evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26813 — those multiple turbine engine helicopters classified by the CAAB in this subgroup because of their lower complexity. - Sub-group 2c: — single piston engine helicopters, — those multiple piston engine helicopters classified by the CAAB in this subgroup because of their lower complexity. 3. Group 3: piston engine aeroplanes other than those in Group 1. GM 66.A.5 Aircraft groups The following table summarises the applicability of categories/subcategories of Part-66 licences versus the groups/subgroups of aircraft: Category/subcategory Groups A, B1 and C B2 B2L B3 1 — Complex motor-powered aircraft — Multi-engine helicopters — other than piston-engine aeroplanes above FL290 — Aircraft with fly-by-wire systems — Any other aircraft when defined by the Agency X X 2 2a: Single-turboprop aeroplanes 2b: Single-turbine helicopters 2c: Single-piston-engine helicopters X X X 3 — Piston-engine aeroplanes X X X 66.A.10 Application (a) An application for an aircraft maintenance licence or change to such licence shall be made on a CAAB Form 19 in a manner established by CAAB and submitted thereto. (b) An application for the change to an aircraft maintenance licence shall be made to the CAAB that issued the aircraft maintenance licence. 26814 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 (c) In addition to the documents required in points 66.A.10 (a), as appropriate, the applicant for additional basic categories or subcategories to an aircraft maintenance licence shall submit his/her current original aircraft maintenance licence to CAAB together with the CAAB Form 19. (d) Reserved (e) Reserved (f) Each application shall be supported by documentation to demonstrate compliance with the applicable theoretical knowledge, practical training and experience requirements at the time of application. AMC 66.A.10 Application 1. Maintenance experience should be written up in a manner that the reader has a reasonable understanding of where, when and what maintenance constitutes the experience. A task by task account is not necessary but at the same time a bland statement “X years maintenance experience completed” is not acceptable. A log book of maintenance experience is desirable and CAAB may require such log books to be kept. It is acceptable to cross refer in the CAAB Form 19 to other documents containing information on maintenance. 2. Applicants claiming the maximum reduction in Part 66.A.30(a) total experience based upon having successfully completed CAAB approved basic training, should include the ANO Part-147 certificate of recognition for approved basic training. 3. Applicants claiming reduction in Part 66.A.30(a) total experience based upon having successfully completed technical training in an organisation or institute recognised by CAAB as a competent organisation or institute, should include the relevant certificate of successful completion of training. GM 66.A.10(a) Application When an application is made for a licence in the B2L category, the applicant should specify on the CAAB Form 19: — the system rating or the combination of system ratings the applicant applies for; and — the aircraft rating, considering that according to 66.A.45(e), a B2L licence endorsed with full subgroup 2b can be endorsed also with full subgroup 2c. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26815 When applying for the addition of a system rating on a B2L licence, the applicant should provide together with the application, the demonstration of compliance with the experience requirements related to the system the applicant applies for. When a B2L licence holder applies for the extension of a B2L licence to add a new system rating, he/she needs to demonstrate the practical experience required by 66.A.30(a)(2a) for the system rating but also the practical experience required by 66.A.45(e) and (f) in case the aircraft group is different. When a B2L licence holder applies for the change of his/her B2L licence to the B2 category, he/she needs only to: — demonstrate by examination the differences between the basic knowledge corresponding to the B2L licence held and the basic knowledge of the B2 licence, as described in Appendix I; and — demonstrate the additional experience described in Appendix IV. These requirements can be found also for the CAAB in 66.B.110. When an applicant applies for the extension of his/her B2L licence to a B2 licence and he/she meets the relevant requirements, the B2L licence is replaced by the B2 licence. 66.A.15 Eligibility An applicant for an aircraft maintenance licence shall be at least 18 years of age. The applicant shall have passed at least Higher Secondary (Science) Examination or its equivalent or has obtained a Diploma in relevant branch of Aircraft Maintenance Technology or Mechanical, Electrical, Power or Electronics Engineering. CAA-B NV 66.A.15 66.A.20 Privileges (a) The following privileges shall apply: 1. A category A aircraft maintenance licence permits the holder to issue certificates of release to service following minor scheduled line maintenance and simple defect rectification within the limits of tasks specifically endorsed on the certification authorization referred to in point 145.A.35 of Part-145. The certification privileges shall be restricted to work that the licence holder has personally performed in the maintenance organisation that issued the certification authorisation. 26816 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 2. A category B1 aircraft maintenance licence shall permit the holder to issue certificates of release to service service and to act as B1 support staff following: - Maintenance performed on aircraft structure, powerplant and mechanical and electrical systems. - work on avionic systems requiring only simple tests to prove their serviceability and not requiring troubleshooting. Category B1 includes the corresponding A subcategory. 3. A category B2 aircraft maintenance licence shall permit the holder: (i) to issue certificates of release to service and to act as B2 support staff for following: - Maintenance performed on avionic and electrical systems, and - Electrical and avionics tasks within powerplant and mechanical systems, requiring only simple tests to prove their serviceability; and (ii) to issue certificates of release to service following minor scheduled line maintenance and simple defect rectification within the limits of tasks specifically endorsed on the certification authorisation referred to in point 145.A.35 of Part- 145. This certification privilege shall be restricted to work that the licence holder has personally performed in the maintenance organisation, which issued the certification authorisation and limited to the ratings already endorsed in the B2 licence. The category B2 licence does not include any A subcategory. 4. A category B2L aircraft maintenance licence shall permit the holder to issue certificates of release to service and to act as B2L support staff for the following: — maintenance performed on electrical systems; — maintenance performed on avionics systems within the limits of the system ratings specifically endorsed on the licence, and — when holding the ‘airframe system’ rating, performance of electrical and avionics tasks within power plant and mechanical systems, requiring only simple tests to prove their serviceability. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26817 5. A category B3 aircraft maintenance licence shall permit the holder to issue certificates of release to service and to act as B3 support staff for: - Maintenance performed on aeroplane structure, powerplant and mechanical and electrical systems. - Work on avionic systems requiring only simple tests to prove their serviceability and not requiring troubleshooting. 6. Reserved. 7. A category C aircraft maintenance licence shall permit the holder to issue certificates of release to service following base maintenance on aircraft. The privileges apply to the aircraft in its entirety in a Part- 145 organisation. (b) The holder of an aircraft maintenance licence may not exercise certification privileges unless: 1. in compliance with the applicable requirements of Part-M and/or Part-145. 2. in the preceding two-year period, he/she has, either had six months of maintenance experience in accordance with the privileges granted by the aircraft maintenance licence or, met the provision for the issue of the appropriate privileges. 3. he/she has the adequate competence to certify maintenance on the corresponding aircraft; and 4. he/she is able to read, write and communicate to an understandable level in the language(s) in which the technical documentation and procedures necessary to support the issue of the certificate of release to service are written. AMC 66.A.20(a)(4) Privileges ‘Within the limits of the system ratings specifically endorsed on the licence’ refers to the fact that the privileges of the licence holder are limited: — to the group/subgroup of aircraft endorsed on the licence, but also — to the system rating(s) endorsed. When an applicant wishes to get the privilege to issue certificates of release to service and to act as support staff for electrical and avionics tasks within powerplant and mechanical systems, he/she should apply for the rating ‘airframe system’ on the B2L licence. The reason is that the ‘airframe systems’ rating is the only rating which covers completely the electrical and avionics tasks of the powerplant and mechanical systems of the aircraft. 26818 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 GM 66.A.20(a) Privileges 1. Then following definitions apply: Electrical system means the aircraft electrical power supply source, plus the distribution system to the different components contained in the aircraft and relevant connectors. Lighting systems are also included in this definition. When working on cables and connectors which are part of these electrical systems, the following typical practices are included in the privileges:  Continuity, insulation and bonding techniques and testing;  Crimping and testing of crimped joints;  Connector pin removal and insertion;  Wiring protection techniques. Avionics system means an aircraft system that transfers, processes, displays or stores analogue or digital data using data lines, data buses, coaxial cables, wireless or other data transmission medium, and includes the system’s components and connectors. Examples of avionics systems include the following:  Autoflight;  Communication, Radar and Navigation;  Instruments (see NOTE below);  In-Flight Entertainment Systems;  Integrated Modular Avionics (IMA);  On-Board Maintenance Systems;  Information Systems;  Fly-by-Wire Systems (related to ATA27 “Flight Controls”);  Fibre Optic Control Systems. NOTE: Instruments are formally included within the privileges of the B2 and B2L with system rating ‘instruments’. However, maintenance on electromechanical and pitot-static components may also be released by a B1 and B3 licence holder. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26819 Simple test means a test described in approved maintenance data and meeting all the following criteria:  The serviceability of the system can be verified using aircraft controls, switches, Built-in Test Equipment (BITE), Central Maintenance Computer (CMC) or external test equipment not involving special training.  The outcome of the test is a unique go–no go indication or parameter, which can be a single value or a value within an interval tolerance. No interpretation of the test result or interdependence of different values is allowed.  The test does not involve more than 10 actions as described in the approved maintenance data (not including those required to configure the aircraft prior to the test, i.e. jacking, flaps down, etc.., or to return the aircraft to its initial configuration). Pushing a control, switch or button, and reading the corresponding outcome may be considered as a single step even if the maintenance data shows them separated. Trouble shooting means the procedures and actions necessary to identify the root cause of a defect or malfunction using approved maintenance data. It may include the use of BITE or external test equipment. Line maintenance (***) means any maintenance that is carried out before flight to ensure that the aircraft is fit for the intended flight. It may include:  trouble shooting;  defect rectification;  component replacement with the use of external test equipment, if required. Component replacement may include components such as engines and propellers;  scheduled maintenance and/or checks including visual inspections that will detect obvious unsatisfactory conditions/discrepancies but do not require extensive in-depth inspection. It may also include internal structure, systems and powerplant items which are visible through quick opening access panels/doors;  minor repairs and modifications which do not require extensive disassembly and can be accomplished by simple means;  for temporary or occasional cases (Airworthiness Directives, hereinafter AD; service bulletins, hereinafter SB) the quality manager may accept base maintenance tasks to be performed by a line 26820 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 maintenance organisation provided all requirements are fulfilled. The CAAB will prescribe the conditions under which these tasks may be performed. *** Applicable from 1 July 2025. The definition for Line maintenance will be referred to AMC1 145.A.10 Base Maintenance (***) means any task falling outside the criteria are given above for Line Maintenance. NOTE: Aircraft maintained in accordance with “progressive” type programmes need to be individually assessed in relation to this paragraph. In principle, the decision to allow some “progressive” checks to be carried out is determined by the assessment that all tasks within the particular check can be carried out safely to the required standards at the designated line maintenance station. *** Applicable from 1 July 2025. The definition for Base maintenance will be referred to AMC1 145.A.10 2. The category B3 licence does not include any A subcategory. Nevertheless, this does not prevent the B3 licence holder from releasing maintenance tasks typical of the A1.2 subcategory for piston-engine non-pressurized aeroplanes of 2000 Kg MTOM and below, within the limitations contained in the B3 licence. 3. Reserved 4. The privileges of the B2 licence with given aircraft ratings include the privileges of the B2L licence for all the system ratings for the same aircraft ratings. Nevertheless, the holder of a B2 licence with given aircraft ratings may apply for a B2L licence in order to include a different aircraft rating if the applicant only wants to demonstrate compliance with the experience requirements for certain system ratings. 5. The category C licence permits certification of scheduled base maintenance by the issue of a single certificate of release to service for the complete aircraft after the completion of all such maintenance. The basis for this certification is that the maintenance has been carried out by competent mechanics, and category B1, B2, B2L and B3 support staff, as appropriate, have signed for the maintenance tasks under their respective specialisation. The principal function of the category C certifying staff is to ensure that all required maintenance has been called up and signed off by the category B1, B2, B2L and B3 support staff, as appropriate, before issue of the certificate of release to service. Only category C personnel who also hold category B1, B2, B2L and B3 qualifications may perform both roles in base maintenance. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26821 AMC 66.A.20(b)2 Privileges. The 6 months maintenance experience in 2 years should be understood as consisting of two elements, duration and nature of the experience. The minimum to meet the requirements for these elements may vary depending on the size and complexity of the aircraft and type of operation and maintenance. 1. Duration: Within an approved maintenance organization: - 6 months continuous employment within the same organisation; or - 6 months split up into different blocks, employed within the same or in different organisations. The 6 months period can be replaced by 100 days of maintenance experience in accordance with the privileges, whether they have been performed within an approved organisation or as independent certifying staff according to Part-M, Para M.A.801(b) or the corresponding regulation issued by CAAB or as a combination hereof. When a licence holder maintains and releases aircraft in accordance with Part-M, Para M.A.801(b), in certain circumstances this number of days may even be reduced by 50% when agreed in advance by CAAB. These circumstances consider the cases where the holder of a Part-66 licence happens to be the owner of an aircraft and carries out maintenance on his own aircraft, or where a licence holder maintains an aircraft operated for low utilization, that does not allow the licence holder to accumulate the required experience. This reduction should not be combined with the 20% reduction permitted when carrying out technical support, or maintenance planning, continuing airworthiness management or engineering activities. To avoid a too long period without experience, the working days should be spread over the intended 6-month period. 2. Nature of Experience: Depending on the category of the aircraft maintenance licence, the following activities are considered relevant for maintenance experience: - Servicing; - Inspection; - Operational and functional testing; - Trouble-shooting; - Repairing; - Modifying; 26822 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 - Changing component; - Supervising these activities; - Releasing aircraft to service. For category A certifying staff, the experience should include exercising the privileges, by means of performing tasks related to the authorization on at least one aircraft type for each licence subcategory. This means tasks as mentioned in AMC 145.30(g), including servicing, component changes and simple defect rectifications. For category B1, B2, B2L and B3, for every aircraft included in the authorization the experience should be on that particular aircraft or on a similar aircraft within the same licence (sub)category. Two aircraft can be considered as similar when they have similar technology, construction and comparable systems, which means equally equipped with the following (as applicable to the licence category): (a) Propulsion systems (piston or turboprop or turbofan or turbo-shaft or jet-engine or push propellers); and (b) Flight control systems (only mechanical controls or hydro- mechanically powered controls or electro-mechanically powered controls); and (c) Avionic systems (analog systems or digital systems); and (d) Structure (manufactured of metal or composite or wood). For licences endorsed with (sub) group ratings: - In the case of B1 licence endorsed with group ratings (either manufacturer group or full group) as defined in Part 66.A.45(g) the holder may show experience on at least one aircraft type per group and per aircraft structure (metal, composite, wood). - In the case of a B2 or B2L licence endorsed with (sub)group ratings (either manufacturer subgroup or full (sub)group) as defined in Part 66.A.45(g) the holder may show experience on at least one aircraft type per (sub)group. - In the case of a B3 licence endorsed with the rating “piston-engine non- pressurized aeroplanes of 2000kg MTOM and below” as defined in 66.A.45, the holder should show experience on at least one aircraft type per aircraft structure (metal, composite, wooden). For category C, the experience should cover at least one of the aircraft types endorsed on the authorization. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26823 For a combination of categories, the experience should include some activities of the nature shown in paragraph 2 in each category. A maximum of 20% of the experience duration required may be replaced by the following relevant activities on an aircraft type of similar technology, construction and with comparable systems: - Aircraft maintenance related training as an instructor/assessor or as a student; - Maintenance technical support/engineering; - Maintenance management/planning. The experience should be documented in an individual log book or in any other recording system (which may be an automated one) containing the following data: (a) Date; (b) Aircraft type; (c) Aircraft identification i.e. registration; (d) ATA chapter (optional); (e) Operation performed i.e. 100 FH check, MLG wheel change, engine oil check and complement, SB embodiment, troubleshooting, structural repair, STC embodiment; (f) Type of maintenance i.e. base, line; (g) Type of activity i.e. perform, supervise, release; (h) Category used (A1, A2, A3, A4, B1.1, B1.2, B1.3, B1.4, B2, B2L, B3, C); (i) Duration in days or partial-days. GM 66.A.20(b)2 Privileges The sentence “met the provision for the issue of the appropriate privileges” included in 66.A.20(b)2 means that during the previous 2 years the person has met all the requirements for the endorsement of the corresponding aircraft rating (for example, in the case of aircraft in Group 1, theoretical plus practical element plus, if applicable, on-the-job training). This supersedes the need for 6 months of experience for the first 2 years. However, the requirement of 6 months of experience in the preceding 2 years will need to be met after the second year. 26824 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 AMC 66.A.20(b)3 Privileges The wording “has the adequate competence to certify maintenance on the corresponding aircraft” means that the licence holder and, if applicable, the organisation where he/she is contracted/employed, should ensure that he/she has acquired the appropriate knowledge, skills, attitude and experience to release the aircraft being maintained. This is essential because some systems and technology present in the particular aircraft being maintained may not have been covered by the training/examination/experience required to obtain the licence and ratings. This is typically the case, among others, in the following situations:  Type ratings which have been endorsed on a licence in accordance with Appendix I to AMC to Part-66 “List of Type Ratings” after attending type training which did not cover all the models/variants included in such rating. For example, a licence endorsed with the rating Airbus A318/A319/A320/ A321 (CFM56) after attending type training covering only the Airbus 320 (CFM56).  Type ratings which have been endorsed on a licence in accordance with Appendix I to AMC to Part-66 “List of Type Ratings” after a new variant has been added to the rating in Appendix I, without performing difference training. For example, a licence endorsed with the rating Boeing 737-600/700/800/900 for a person who already had the rating Boeing 737- 600/700/800, without performing any difference training for the 737-900.  Work being carried out on a model/variant for which the technical design and maintenance techniques have significantly evolved from the original model used in the type training / on-the- job training.  Specific technology and options selected by each customer which may not have been covered by the type training / on-the- job training.  Changes in the basic knowledge requirements of Appendix I to Part- 66 not requiring re- examination of existing licence holders (grandfathered privileges).  The endorsement of group/subgroup ratings based on experience on a representative number of tasks/aircraft or based on type training/ examination on a representative number of aircraft.  Persons meeting the requirements of 6 months of experience every 2 years only on certain similar aircraft types as allowed by AMC 66.A.20(b)2. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26825  Persons holding a Part-66 licence with limitations, obtained through conversion of national qualifications (66.A.70), where such limitations are going to be lifted after performing the corresponding basic knowledge examinations. In this case, the type ratings endorsed in the licence may have been obtained in the national system without covering all the aircraft systems (because of the previous limitations) and there will be a need to assess and, if applicable, to train this person on the missing systems. Additional information is provided in AMC 145.A.35(a). GM 66.A.20(b)4 Privileges 1. Holders of a Part-66 aircraft maintenance licence may not exercise certification privileges unless they have a general knowledge of the language used within the maintenance environment including knowledge of common aeronautical terms in the language. The level of knowledge should be such that the licence holder is able to: - read and understand the instructions and technical manuals used for the performance of maintenance; - make written technical entries and any maintenance documentation entries, which can be understood by those with whom they are normally required to communicate; - read and understand the maintenance organisation procedures; - communicate at such a level as to prevent any misunderstanding when exercising certification privileges. 2. In all cases, the level of understanding should be compatible with the level of certification privileges exercised. 66.A.25 Basic knowledge requirements (a) An applicant for an aircraft maintenance licence or for the addition of a category or subcategory to such an aircraft maintenance licence shall demonstrate by examination a level of knowledge of the appropriate subject modules in accordance with Appendix I to this Part. The examination shall comply with the standard set out in Appendix II to this Part and shall be conducted either by a training organisation appropriately approved in accordance with ANO Part- 147 or by CAAB. (b) Reserved (c) An applicant for an aircraft maintenance licence in category B2L for a particular ‘system rating’, or for the addition of another ‘system rating’, shall demonstrate by examination a level of knowledge of the 26826 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 appropriate subject modules in accordance with Appendix I to Annex III (Part-66). The examination shall comply with the standard set out in Appendix II to Annex III (Part-66) and shall be conducted either by a training organisation appropriately approved in accordance with Annex IV (Part-147), or by the CAA. (d) The training courses and examinations shall be passed within 10 (ten) years prior to the application for an aircraft maintenance licence or the addition of a category or subcategory to such aircraft maintenance licence. Should this not be the case, examination credits may however be obtained in accordance with point (e). (e) The applicant may apply to CAAB for full or partial examination credit to the basic knowledge requirements for: 1. Basic knowledge examinations that do not meet the requirement described in point (b) above; and 2. Any other technical qualification considered by CAAB to be equivalent to the knowledge standard of Part-66. Credits shall be granted in accordance with Subpart E of Section B of this Part. (f) Credits expire 10 (ten) years after they were granted to the applicant by CAAB. The applicant may apply for new credits after expiration. AMC 66.A.25 Basic knowledge requirements 1. For an applicant being a person qualified by holding an academic degree in an aeronautical, mechanical or electronic discipline from a recognised university or other higher educational institute the need for any examination will depend upon the course taken in relation to Appendix I to Part-66. 2. Knowledge gained and examinations passed during previous experiences, for example, in military aviation and civilian apprenticeships will be credited where CAAB is satisfied that such knowledge and examinations are equivalent to that required by Appendix I to Part-66. GM 66.A.25(a) Basic knowledge requirements The levels of knowledge for each licence (sub)category are directly related to the complexity of the certifications related to the corresponding licence (sub)category, which means that category A should demonstrate a limited but adequate level of knowledge, whereas category B1, B2, B2L and B3 should demonstrate a complete level of knowledge in the appropriate subject modules. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26827 GM 66.A.25(b) Reserved. 66.A.30 Basic Experience requirements (a) An applicant for an aircraft maintenance licence shall have acquired: 1. For category A and subcategories B1.2 and B1.4 and category B3: (i) three years of practical maintenance experience on operating aircraft, if the applicant has no previous relevant technical training; or (ii) two years of practical maintenance experience on operating aircraft and completion of training considered relevant by CAAB as a skilled worker, in a technical trade; or (iii) one year of practical maintenance experience on operating aircraft and completion of a basic training course in accordance with Part-147. 2. For category B2 and subcategories B1.1 and B1.3: (i) five years of practical maintenance experience on operating aircraft if the applicant has no previous relevant technical training; or (ii) three years of practical maintenance experience on operating aircraft and completion of training considered relevant by CAAB as a skilled worker, in a technical trade; or (iii) two years of practical maintenance experience on operating aircraft and completion of a basic training course approved in accordance with Part-147. 2a. For category B2L: (i) three years of practical maintenance experience in operating aircraft, covering the corresponding system rating(s), if the applicant has no previous relevant technical training; or (ii) two years of practical maintenance experience in operating aircraft, covering the corresponding system rating(s), and completion of training, considered relevant by the CAAB, as a skilled worker in a technical trade; or (iii) one year of practical maintenance experience in operating aircraft, covering the corresponding system rating(s), and completion of a Part-147 approved basic training course. For the addition of (a) new system rating(s) to an existing B2L licence, 3 months of practical maintenance experience relevant to the new system rating(s) shall be required for each system rating added. 26828 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 2b. Reserved. 3. For category C with respect to large aircraft: (i) three years of experience exercising category B1.1, B1.3 or B2 privileges on complex motor-powered aircraft or as support staff according to point 145.A.35, or, a combination of both; or (ii) five years of experience exercising category B1.2 or B 1.4 privileges on complex motor-powered aircraft or as support staff according to point 145.A.35, or a combination of both; 4. For category C with respect to other than complex motor-powered aircraft: three years of experience exercising category B1 or B2 privileges on other than complex motor-powered aircraft or as support staff according to point 145.A.35, or a combination of both; or 5. For category C obtained through the academic route: an applicant holding an academic degree in a technical discipline, from a university or other higher educational institution recognised by CAAB, three years of experience working in a civil aircraft maintenance environment on a representative selection of tasks directly associated with aircraft maintenance including six months of observation of base maintenance tasks. (b) An applicant for an extension to an aircraft maintenance licence shall have a minimum civil aircraft maintenance experience requirement appropriate to the additional category or subcategory of licence applied for as defined in Appendix IV to this Part. (c) The experience must be practical which means being involved with a representative cross section of maintenance tasks on aircraft. (d) At least one year of the required experience shall be recent maintenance experience on aircraft of the category/subcategory for which the initial aircraft maintenance licence is sought. For subsequent category/subcategory additions to an existing aircraft maintenance licence, the additional recent maintenance experience required may be less than one year, but shall be at least three months. The required experience shall be dependent upon the difference between the licence category/subcategory held and applied for. Such additional experience shall be typical of the new licence category/subcategory sought. (e) Notwithstanding paragraph (a), aircraft maintenance experience gained outside a civil aircraft maintenance environment shall be accepted when such maintenance is equivalent to that required by this Annex (Part-66) as evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26829 established by CAAB. Additional experience of civil aircraft maintenance shall, however, be required to ensure adequate understanding of the civil aircraft maintenance environment. (f) Experience shall have been acquired within the ten years preceding the application for an aircraft maintenance licence or the addition of a category or subcategory to such a licence. AMC 66.A.30(a) Basic Experience requirements 1. For a category C applicant holding an academic degree the representative selection of tasks should include the observation of hangar maintenance, maintenance planning, quality assurance, record-keeping, approved spare parts control and engineering development. 2. While an applicant to a Part-66 category C licence may be qualified by having 3 years experience as category B1 or B2 certifying staff only in line maintenance, it is however recommended that any applicant to a category C holding a B1 or B2 licence demonstrate at least 12 months experience as a B1 or B2 base maintenance support staff. 3. A skilled worker is a person who has successfully completed a training acceptable to CAAB, involving the manufacture, repair, overhaul or inspection of mechanical, electrical or electronic equipment. The training would include the use of tools and measuring devices. 4. Maintenance experience on operating aircraft: Means the experience of being involved in maintenance tasks on aircraft which are being operated by airlines, air taxi organisations, aero clubs, owners, etc. as relevant to the licence category/ subcategory; - Should cover a wide range of tasks in length, complexity and variety; - Aims at gaining sufficient experience in the real environment of maintenance as opposed to only the training school environment; - May be gained within different types of maintenance organisations (Part-145, Part-M, Para M.A. Subpart F etc.) or under the supervision of independent certifying staff; - May be combined with Part-147 approved training (or other training approved by the CAAB) so that periods of training can be intermixed with periods of experience, similar to an apprenticeship. - may be full-time or part-time, either as professional or on a voluntary basis; 26830 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 5. In the case of an applicant for a licence including several categories/ subcategories, it is acceptable to combine the periods of experience as long as there is a sufficient experience for each category/subcategory during the required period. Examples: - Application for a B1.1 (turbine aeroplanes) + B1.3 (turbine helicopters): The Regulation requires 5 years of experience for B1.1 and 5 years of experience for B1.3 for an applicant with no relevant previous technical training: - It is not acceptable to combine the experience in a single 5-year period where the applicant has been working for 3 years on turbine aeroplanes and 2 years on turbine helicopters. - However, it is acceptable to combine the experience in a single 5-year period if the applicant has been working for 5 years on turbine aeroplanes and turbine helicopters (for example, aeroplanes in the morning, helicopters in the afternoon, or a few days every week on aeroplanes and a few days every week on helicopters). - Application for a B1.1 (turbine aeroplanes) + B2 (avionics): The Regulation requires 5 years of experience for B1.1 and 5 years of experience for B2 for an applicant with no relevant previous technical training. - It is not acceptable to combine the experience in a single 5-year period where the applicant has been working for 3 years on turbine aeroplanes (with no avionics work) and 2 years on avionics systems. - However, it is acceptable to combine the experience in a single 5-year period if the applicant has been working for 5 years on structures, powerplant, mechanical and electrical systems and avionics (for B1.1 tasks in the morning, B2 tasks in the afternoon, or a few days every week for B1.1 tasks and a few days every week for B2 tasks). - Application for a B1.1, B1.2, B1.3, B1.4 and B2: The Regulation requires 5 years of experience for B1.1, B1.3 and B2 and 3 years of experience for B1.2 and B1.4 for an applicant with no relevant previous technical training. - In this case, it is very unlikely that the experience for each category/subcategory would be sufficient. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26831 AMC 66.A.30(c) Basic Experience requirements In the case of the category B2L licence, the sentence ‘a representative cross section of maintenance tasks on aircraft’ refers to the person that has carried out some maintenance tasks that are representative of the systems corresponding to the system ratings for which he/she applies (see 66.A.3). These tasks may include troubleshooting, modifications or repairs. AMC 66.A.30(d) Basic Experience requirements To be considered as recent experience, at least 50% of the required 12 months experience should be gained within the 12 months period prior to the date of application for the Part-66 aircraft maintenance licence. The remainder of the experience should have been gained within the 7 years period prior to application. It must be noted that the rest of the basic experience required by 66.A.30 must be obtained within the 10 years prior to the application as required by 66.A.30(f). AMC 66.A.30(e) Basic Experience requirements 1. For category A, the additional experience of civil aircraft maintenance should be a minimum of 6 months in a civil aircraft maintenance environment. For category B1, B2, B2L or B3, the additional experience of civil aircraft maintenance should be a minimum of 12 months in a civil aircraft maintenance environment. 2. Aircraft maintenance experience gained outside a civil aircraft maintenance environment may include aircraft maintenance experience gained in armed forces, coast guards, police etc. or in aircraft manufacturing. 66.A.40 Continued validity of the aircraft maintenance licence (a) The aircraft maintenance licence becomes invalid five year after its last issue or change unless the holder submits his/her aircraft maintenance licence to CAAB, in order to verify that the information contained in the licence is the same as that contained in CAAB records, pursuant to point 66.B.120. (b) The holder of an aircraft maintenance licence shall complete the relevant parts of the CAAB Form 19 (See Appendix V) and submit it with the holder’s copy of the licence to CAAB, unless the holder works in a maintenance organisation approved in accordance with Part-145 that has a procedure in its exposition whereby such organisation may submit the necessary documentation on behalf of the aircraft maintenance licence holder. 26832 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 (c) Any certification privilege based upon an aircraft maintenance licence becomes invalid as soon as the aircraft maintenance licence is invalid. (d) The aircraft maintenance licence is only valid (i) when issued and/or changed by CAAB and (ii) when the holder has signed the document. GM 66.A.40 Continued validity of the aircraft maintenance licence Validity of the Part-66 aircraft maintenance licence is not affected by recency of maintenance experience whereas the validity of the 66.A.20 privileges is affected by maintenance experience as specified in 66.A.20(a) 66.A.45 Endorsement with aircraft ratings (a) In order to be entitled to exercise certification privileges on a specific aircraft type, the holder of an aircraft maintenance licence needs to have his/her licence endorsed with the relevant aircraft ratings. - For category B1, B2 or C the relevant aircraft ratings are the following: (i) For Group 1 aircraft, the appropriate aircraft type rating. (ii) For Group 2 aircraft, the appropriate aircraft type rating, manufacturer sub-group rating or full sub-group rating. (iii) For Group 3 aircraft, the appropriate aircraft type rating or full group rating. - For category B2L, the relevant aircraft ratings are the following: (i) for Group 2 aircraft, the appropriate manufacturer subgroup rating or full subgroup rating; (ii) for Group 3 aircraft, the full group rating; - For category B3, the relevant rating is “piston-engine non- pressurized aeroplanes of 2000 Kg MTOM and below”. - For category A, no rating is required, subject to compliance with the requirements of point 145.A.35 of Part-145. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26833 (b) The endorsement of aircraft type ratings requires the satisfactory completion of of one of the following: - the relevant category B1, B2 or C aircraft type training in accordance with Appendix III to Part-66; - in the case of gas airship type ratings on a B2 licence, a type training approved by the CAAB in accordance with point 66.B.130. (c) For other than category C licences, in addition to the requirement of point (b), the endorsement of the first aircraft type rating within a given category/sub-category requires satisfactory completion of the corresponding On-the-Job Training, as described in Appendix III to Part-66, except in the case of gas airships, where it shall be directly approved by the CAAB. (d) By derogation from points (b) and (c), for group 2 and 3 aircraft, aircraft type ratings may also be endorsed on a licence after completing the following steps: - Satisfactory completion of the relevant category B1, B2 or C aircraft type examination described in Appendix III to this Part-66, and - In the case of B1 and B2 category, demonstration of practical experience on the aircraft type. In that case, the practical experience shall include a representative cross section of maintenance activities relevant to the licence category. In the case of a category C rating for a person qualified by holding an academic degree as specified in point 66.A.30(a)(5), the first relevant aircraft type examination shall be at the category B1 or B2 level. (e) For group 2 aircraft: (i) The endorsement of manufacturer sub-group ratings for category B1 and C licence holders requires complying with the aircraft type rating requirements of at least two aircraft types from the same manufacturer which combined are representative of the applicable manufacturer sub-group; (ii) The endorsement of full sub-group ratings for category B1 and C licence holders requires complying with the aircraft type rating requirements of at least three aircraft types from different manufacturers which combined are representative of the applicable sub-group; 26834 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 (iii) The endorsement of manufacturer subgroup and full subgroup ratings for category B2 and B2L licence holders requires demonstration of practical experience which shall include a representative cross section of maintenance activities relevant to the licence category and to the applicable aircraft subgroup and, in the case of the B2L licence, relevant to the applicable system rating(s); (iv) by derogation from point (e)(iii), the holder of a B2 or B2L licence, endorsed with a full subgroup 2b, is entitled to be endorsed with a full subgroup 2c. (f) For group 3 aircraft: (i) The endorsement of the full Group 3 rating for category B1, B2, B2L and C licence holders holders require demonstration of practical experience, which shall include a representative cross section of maintenance activities relevant to the licence category and to Group 3, as applicable; (ii) For category B1, unless the applicant provides evidence of appropriate experience, the group 3 rating shall be subject to the following limitations, which shall be endorsed on the licence: - Pressurized aeroplanes - Metal structure aeroplanes - Composite structure aeroplanes - Wooden structure aeroplanes - Aeroplanes with metal tubing structure covered with fabric. (iii) by derogation from point (f)(i), the holder of a B2L licence, endorsed with a full subgroup 2a or 2b, is entitled to be endorsed with Groups 3. (g) For the B3 licence: (i) The endorsement of the rating “piston-engine non-pressurized aeroplanes of 2000 Kg MTOM and below” requires demonstration of practical experience, which shall include a representative cross-section of maintenance activities relevant to the licence category. (ii) Unless the applicant provides evidence of appropriate experience, the rating referred to in point (i) shall be subject to the following limitations, which shall be endorsed on the licence: - Wooden structure aeroplanes evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26835 - Aeroplanes with metal tubing structure covered with fabric - Metal structure aeroplanes - Composite structure aeroplanes. GM 66.A.45 Endorsement with aircraft ratings The following table shows a summary of the aircraft rating requirements contained in 66.A.45, 66.A.50 and Appendix III to Part-66. The table contains the following: • The different aircraft groups. • For each licence (sub)category, which ratings are possible (at the choice of the applicant): - Individual type ratings. - Full and/or Manufacturer (sub)group ratings • For each rating option, which are the qualification options. • For the B1.2 licence (Group 3 aircraft) and for the B3 licence (piston- engine non-pressurized aeroplanes of 2000 Kg MTOM and below), which are the possible limitations to be included in the licence if not sufficient experience can be demonstrated in those areas. Note: OJT means “On-the-Job Training” (Appendix III to Part-66, Section 6) and is only required for the first aircraft rating in the licence (sub)category. Aircraft rating requirements Aircraft Groups B1/B3 licence B2/B2L licence C licence Group 1 • Complex motorpowered aircraft. Multiple engine helicopters. • Aeroplanes certified above FL290. • Aircraft equipped with fly- by-wire. • Other aircraft defined by CAAB (For B1) Individual TYPE RATING Type training: - Theory + examination - Practical + assessment PLUS OJT (for first aircraft in licence subcategory) (For B2) Individual TYPE RATING Type training: - Theory + examination - Practical + assessment PLUS OJT (for first aircraft in licence subcategory) Individual TYPE RATING Type training: - Theory + examination Group 2 (For B1.1, B1.3, B1.4) (For B2) Subgroups: 2a: single turboprop aeroplanes (*) Individual TYPE RATING (type training + OJT) or (type examination + practical experience) Individual TYPE RATING (type training + OJT) or (type examination + practical experience) (For B2 and B2L) Individual TYPE RATING type training or type examination 26836 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 2b: single turbine-engine helicopters (*) 2c: single piston-engine helicopters (*) (*) Except those classified in Group 1. Full SUBGROUP RATING (type training + OJT) or (type examination + practical experience) on at least 3 aircraft representative of that subgroup Full SUBGROUP RATING based on demonstration of practical experience Full SUBGROUP RATING type training or type examination on at least 3 aircraft representative of that subgroup Manufacturer SUBGROUP RATING (type training + OJT) or (type examination + practical experience) on at least 2 aircraft representative of that manufacturer subgroup Manufacturer SUBGROUP RATING based on demonstration of practical experience Manufacturer SUBGROUP RATING type training or type examination on at least 2 aircraft representative of that manufacturer subgroup Group 3 (For B1.2) (For B2) Piston engine aeroplanes (except those classified in Group 1) Individual TYPE RATING (type training + OJT) or (type examination + practical experience) Individual TYPE RATING (type training + OJT) or (type examination + practical experience) (For B2 and B2L) Individual TYPE RATING type training or type examination Full GROUP 3 RATING based on demonstration of practical experience Limitations: • Pressurized aeroplanes • Metal aeroplanes • Composite aeroplanes • Wooden aeroplanes • Metal tubing & fabric aeroplanes Full GROUP 3 RATING based on demonstration of appropriate experience Full GROUP 3 RATING based on demonstration of practical experience Piston engine non- pressurized Aeroplanes of 2000 kg MTOM and below (For B3) FULL RATING "Piston engine non-pressurized aeroplanes of 2000 kg MTOM & below" based on demonstration of practical experience This rating cannot be endorsed on a B2/B2L licence. These aircraft are already covered by the endorsement of ratings for Group 3 aircraft (see box above) This rating cannot be endorsed on a C licence. These aircraft are already covered by the endorsement of ratings for Group 3 aircraft (see box above) Limitations: • Metal aeroplanes • Composite aeroplanes • Wooden aeroplanes • Metal tubing & fabric aeroplanes evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26837 GM 66.A.45(b) Endorsement with aircraft ratings An aircraft type rating includes all the aircraft models/variants listed in column 2 of Appendix I to AMC to Part-66. When a person already holds a type rating on the licence and such type rating is amended in the Appendix I to AMC to Part-66 in order to include additional models/variants, there is no need for additional type training for the purpose of amending the type rating in the licence. The rating should be amended to include the new variants, upon request by the applicant, without additional requirements. However, it is the responsibility of the licence holder and, if applicable, the maintenance organisation where he/she is employed to comply with 66.A.20(b)3, 145.A.35(a) and Part-M, Para M.A.607(a), as applicable, before he/she exercises certification privileges. Similarly, type training courses covering certain, but not all the models/variants included in a type rating, are valid for the purpose of endorsing the full type rating. AMC 66.A.45(d);(e)3;(f)1;(g)1;(h) Endorsement with aircraft ratings 1. The ‘practical experience’ should cover a representative cross section including at least: - For categories B1, B2, B2L and B3: 50% of the tasks contained in Appendix II to the AMC relevant to the licence category and to the applicable aircraft type ratings or aircraft (sub)group ratings being endorsed; 2. In the case of endorsement of individual type ratings for Group 2 and Group 3 aircraft, for the second aircraft type of each manufacturer (sub)group the practical experience should be reduced to 30% of the tasks contained in Appendix II to AMC relevant to the licence category and to the applicable aircraft type. For subsequent aircraft types of each manufacturer (sub) group this should be reduced to 20%. 3. Practical experience should be demonstrated by the submission of records or a log book showing the Appendix II tasks performed by the applicant. Typical data to be recorded are similar to those described in AMC 66.A.20(b)2. AMC 66.A.45(e) Endorsement with aircraft ratings 1. For the granting of manufacturer subgroup ratings for Group 2 aircraft, for B1 and C licence holders, the sentence “at least two aircraft types from the same manufacturer which combined are representative of the applicable manufacturer subgroup” means that the selected aircraft types should cover 26838 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 the technologies relevant to the manufacturer subgroup in the following areas: - Flight control systems (mechanical controls / hydromechanically powered controls / electromechanically powered controls); and - Avionic systems (analogue systems / digital systems); and - Structure (manufactured of metal / composite / wood). In cases where there are very different aircraft types within the same manufacturer subgroup, it may be necessary to cover more than two aircraft types to ensure adequate representation. For this purpose, it may be possible to use aircraft types from the same manufacturer classified in Group 1 as long as the selected aircraft belong to the same licence subcategory for which the rating will be endorsed. 2. For the granting of full subgroup ratings for Group 2 aircraft, for B1 and C licence holders, the sentence “at least three aircraft types from different manufacturers which combined are representative of the applicable subgroup” means that the selected aircraft types should cover all the technologies relevant to the manufacturer subgroup in the following areas: - Flight control systems (mechanical controls/hydromechanically powered controls/ electromechanically powered controls); and - Avionic systems (analogue systems / digital systems); and - Structure (manufactured of metal / composite / wood). In cases where there are very different aircraft types within the same subgroup, it may be necessary to cover more than three aircraft types to ensure adequate representation. For this purpose, it may be possible to use aircraft types from different manufacturers classified in Group 1 as long as the selected aircraft belong to the same licence subcategory for which the rating will be endorsed. 3. For manufacturer subgroup ratings, the term “manufacturer” means the TC holder defined in the certification data sheet, which is reflected in the list of type ratings in Appendix I to AMC to Part-66. In the case of an aircraft rating where the type rating refers to a TC holder made of a combination of two manufacturers which produce a similar aircraft (i.e. AGUSTA / BELL HELICOPTER TEXTRON or any case of aircraft similarly built by another manufacturer) this combination should be considered as one manufacturer. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26839 As a consequence: • When a licence holder gets a manufacturer type or a manufacturer subgroup rating made of a combination of manufacturers, it covers the combination of such manufacturers. • When a licence holder who intends to endorse a full subgroup rating selects three aircraft from different manufacturers, this means from different combinations of manufacturers as applicable. GM 66.A.45(h)2 Reserved 66.A.50 Limitations (a) Limitations introduced on an aircraft maintenance licence are exclusions from the certification privileges and, in the case of limitations referred to in point 66.A.45, they affect the aircraft in its entirety. (b) For limitations referred to in point 66.A.45, limitations shall be removed upon: 1. demonstration of appropriate experience, or 2. after a satisfactory practical assessment performed by CAAB. (c) For limitations referred to in point 66.A.70, limitations shall be removed upon satisfactory completion of examination on those modules/subjects defined in the applicable conversion report referred to in point 66.B.300. AMC 66.A.50(b) Limitations 1. The appropriate experience required to remove the limitations referred in 66.A.45(f) and (g) should consist of the performance of a variety of tasks appropriate to the limitations under the supervision of authorised certifying staff. This should include the tasks required by a scheduled annual inspection. Alternatively, this experience may also be gained, if agreed by CAAB, by theoretical and practical training provided by the manufacturer, as long as an assessment is further carried out and recorded by this manufacturer. 2. It may be acceptable to have this experience on just one aircraft type, provided this type is representative of the (sub)group in relation to the limitation being removed. 3. It is acceptable that this experience is gained in aircraft not covered by the Basic Regulation, provided that this experience is relevant and representative of the corresponding (sub)group. An example could be 26840 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 the experience required to remove a limitation such as ‘aircraft with metal tubing structure covered with fabric’, which may be gained in ultralight aircraft (Annex I aircraft). 4. The application for the limitation removal should be supported by a record of experience signed by the authorised certifying staff or by an assessment signed by the manufacturer after completion of the applicable theoretical and practical training. 66.A.55 Evidence of qualification Personnel exercising certification privileges as well as support staff shall produce their licence, as evidence of qualification, within 24 hours upon request by an authorized person. 66.A.70 Conversion provisions (a) The holder of a valid certifying staff qualification issued by CAAB, prior to the date of entry into force of this Part shall be issued an aircraft maintenance licence by CAAB without further examination subject to the conditions specified in Section B Subpart D. (b) A person undergoing a certifying staff qualification process valid in Bangladesh, prior to the date of entry into force of this Part may continue to be qualified. The holder of a certifying staff qualification gained following such qualification process shall be issued an aircraft maintenance licence by CAAB without further examination subject to the conditions specified in Section B Subpart D. (c) Where necessary, the aircraft maintenance licence shall contain technical limitations in accordance with point 66.A.50 to reflect the differences between (i) the scope of the certifying staff qualification valid in Bangladesh before the entry into force of this Regulation and (ii) the basic knowledge requirements and the basic examination standards laid down in Appendix I and II to this Part-66. (d) By derogation to paragraph (c) for aircraft not involved in commercial air transport other than large aircraft, the aircraft maintenance licence shall contain limitations in accordance with point 66.A.50 to ensure that the certifying staff privileges valid in Bangladesh before the entry into force of this Regulation and the privileges of the converted Part- 66 aircraft maintenance licence remain the same. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26841 GM 66.A.70 Conversion provisions 1. As described in point 66.A.70, the conversion provisions apply to the holder of a certifying staff qualification valid in Bangladesh prior to the date of entry into force of Part-66. The sentence “the holder of a certifying staff qualification valid in Bangladesh” means any person who had a qualification valid in that State allowing that person the performance of activities identical to the privileges of “certifying staff”. This means that the signature of that person was sufficient to declare that the maintenance had been properly performed and the aircraft was ready for service and fit for flight in respect to such maintenance. This should not be mistaken with the responsibilities linked to the airworthiness review, which was performed at different periods (typically varying from 6 months to 3 years). This is an activity which is performed at very specific points of time and not after every maintenance activity. Since an airworthiness review is not performed after every maintenance event before the aircraft takes flight, an airworthiness review cannot be considered as a maintenance release. This means that the conversion provisions described in 66.A.70 are not applicable to persons performing airworthiness review functions unless their signature was required after every maintenance event before the aircraft can take flight. 2. The conversion applies to “certifying staff qualifications” such as, for example: • Holding a national licence (or completed the process to obtain such a national licence); • Having completed a qualification process defined by CAAB to become certifying staff; • Having completed the qualification requirements for certifying staff within a maintenance organisation, as defined in their procedures. This does not mean that in order to be entitled to a conversion process, the applicant has to be exercising certification privileges. A person may hold a “certifying staff qualification” while not having certification privileges (or while exercising very limited certification privileges below his/her qualification) for different reasons such as, for example, the following: • The person is working as “support staff” in the base maintenance environment; 26842 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 • The person has been authorised only for a very limited range of tasks (lower than what he/she would be entitled if his/her qualification is considered) since the person is working in a line station where the scope of tasks is very limited; • The person holds a licence with a wider scope than the scope of the organisation where he/she is employed; • The person is working outside the aviation industry or is temporarily on leave due to different reasons (medical, personal, etc.). These persons are entitled to have the conversion performed in accordance with the full scope of their qualification and the full privileges that they would be entitled to hold on the basis of such qualification. 3. Reserved 4. Reserved 5. A certifying staff qualification can be subject to more than one conversion process and can also be converted to more than one licence (with any applicable limitations). This could be the case, for example, of a person who already had the certifying staff qualification converted to a B1.2 licence with limitations linked to some missing elements of the Part-66 Appendix I and II standard (following 66.A.70(c)). This person would be entitled to apply and have his/her certifying staff qualification converted to a B1.2 or a B3 licence on the basis of 66.A.70(d), which would mean no need to compare with the Part-66 Appendix I and II standard, introducing only those limitations required in order to maintain the existing privileges. GM 66.A.70(c) Conversion provisions For example, a limitation could be where a person holds a pre-existing certifying staff qualification which covered, to the standard of Part-66 Appendix I and II, all the modules/subjects corresponding to the B1 licence except for electrical power systems. This person would be issued a Part-66 aircraft maintenance licence in the B1 category with a limitation (exclusion) on electrical power systems. Other limitations may be necessary after comparison between the ANO(AW) Part-D syllabus and the ANO Part-66 syllabus. For removal of limitations, refer to 66.A.50(c). evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26843 GM 66.A.70(d) Conversion provisions In the case of aircraft not involved in commercial air transport other than large aircraft, an example of limitations could be where a person holds a pre Part-66 qualification which covered privileges to release work performed on aircraft structures, powerplant, mechanical and electrical systems but excluded privileges on aircraft equipped with turbine engine, aircraft above 2000 Kg MTOM, pressurized aircraft and aircraft equipped with retractable landing gear. This person would be issued a Part-66 aircraft maintenance licence in the B1.2 or B3 (sub)category with the following limitations (exclusions): • Aircraft involved in commercial air transport (this limitation always exists); • Aircraft above 2000 Kg MTOM; • Pressurized aircraft; • Aircraft equipped with retractable landing gear. Another example of limitations could be where a pilot-owner holds a pre Part-66 qualification which covered privileges to release work performed on aircraft structures, powerplant, mechanical and electrical systems but limited to his/her own aircraft and limited to a particular aircraft type (for example, a Cessna 172). This pilot-owner would receive a Part-66 aircraft maintenance licence in the B1.2 or B3 (sub) category with the following limitations (exclusions): • Aircraft involved in commercial air transport (this limitation always exists); • Aircraft other than a Cessna 172; • Aircraft not owned by the licence holder. The essential aspect is that the limitations are established in order to maintain the privileges of the pre Part-66 qualification, without comparing the previous qualification with the standard of Part- 66 Appendix I and II. For removal of limitations, refer to 66.A.50(c). 26844 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 CHAPTER 2 PROCEDURES FOR CAAB & ACCEPTABLE MEANS OF COMPLIANCE evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26845 SECTION B PROCEDURE FoR CAAB SUBPART A GENERAL 66.B.1 Scope This section establishes the procedures including the administrative requirements to be followed by CAAB in charge of the implementation and the enforcement of Section A of this Part. 66.B.10 Civil Aviation Authority, Bangladesh (a) General CAAB shall establish an adequate organisational structure for issuance, continuation, change, conversion, suspension or revocation of aircraft maintenance licences and ensure compliance with Part-66. (b) Resources CAAB shall be appropriately staffed to ensure the implementation of the requirements of this Part. (c) Procedures CAAB shall establish documented procedures detailing how compliance with this Part is accomplished. These procedures shall be reviewed and amended to ensure continued compliance. 66.B.15 Acceptable Means of Compliance When the applicant for issuance, continuation, conversion, suspension or revocation of an aircraft maintenance licence uses the AMC of this Part CAAB shall consider the requirements of the rule as met. 66.B.20 Record-keeping (a) CAAB shall establish a system of record-keeping that allows adequate traceability of the process to issue, revalidate, change, suspend or revoke each aircraft maintenance licence. (b) The records shall include for each licence: 1. the application for an aircraft maintenance licence or change to that licence, including all supporting documentation; 2. a copy of the aircraft maintenance licence including any changes; 26846 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 3. copies of all relevant correspondence; 4. details of any exemption and enforcement actions; 5. any report from other competent authorities relating to the aircraft maintenance licence holder; 6. The records of examinations conducted by CAAB; 7. The applicable conversion reports used for conversion; 8. The applicable credit reports used for crediting; (c) Records referred to in points 1 to 5 of point (b) shall be kept at least five years after the end of the licence validity. (d) Records referred to in points 6, 7 and 8 of point (b) shall be kept for an unlimited period. AMC 66.B.20 Record-keeping 1. The record-keeping system should ensure that all records are accessible whenever needed within a reasonable time. These records should be organized in a consistent way throughout CAAB (chronological, alphabetical order, etc.). 2. All records containing sensitive data regarding applicants or organisations should be stored in a secure manner with controlled access to ensure confidentiality of this kind of data. 3. All computer hardware used to ensure data backup should be stored in a different location from that containing the working data in an environment that ensures they remain in good condition. When hardware or software changes take place special care should be taken that all necessary data continues to be accessible at least through the full period specified in 66.B.20. 66.B.25 Reserved 66.B.30 Exemptions All exemptions granted in accordance with the applicable National Regulation shall be recorded and retained by CAAB. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26847 SUBPART B ISSUE OF AN AIRCRAFT MAINTENANCE LICENCE This Subpart provides the procedures to be followed by CAAB to issue change or continue an aircraft maintenance licence. 66.B.100 Procedure for the issue of an aircraft maintenance licence by CAAB (a) On receipt of CAAB Form 19 and any supporting documentation, CAAB shall verify CAAB Form 19 for completeness and ensure that the experience claimed meets the requirement of this Part. (b) CAAB shall verify an applicant's examination status and/or confirm the validity of any credits to ensure that all required modules of Appendix I have been met as required by this Part. (c) When having verified the identity and date of birth of the applicant and being satisfied that the applicant meets the standards of knowledge and experience required by this Part, CAAB shall issue the relevant aircraft maintenance licence to the applicant. The same information shall be kept on CAAB records file. (d) In the case where aircraft types or groups are endorsed at the time of the issuance of the first aircraft maintenance licence, the CAAB shall verify compliance with point 66.B.115. AMC 66.B.100 Procedure for the issue of an aircraft maintenance licence by CAAB 1. Applicants claiming the maximum reduction in 66.A.30(a) total experience based upon successful completion of a 147.A.200 approved basic training course should include the Part- 147 certificate of recognition for approved basic training. 2. Applicants claiming reduction in 66.A.30(a) total experience based upon successful completion of training considered relevant by CAAB as a skilled worker in a technical trade, should include the relevant certificate of successful completion of training. 3. Applicants claiming credit against the 66.A.30(a) total experience requirement by virtue of 66.A.30(a) non-civil aircraft maintenance experience may only be granted such credit where the CAAB has recognised such non-civil aircraft maintenance experience. CAAB in recognising non-civil aircraft maintenance experience should have 26848 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 specified who within the non-civil environment may make a statement that the applicant has met relevant maintenance experience. The applicant should include a detailed statement of such maintenance experience signed by the non- civil maintenance authority in accordance with the conditions specified by CAAB. 4. CAAB should check that the experience record satisfies above paragraphs in terms of content and the countersigning signature. NOTE: See AMC 66.B.100 to 115 GM 66.B.100 Procedure for the issue of an aircraft maintenance licence by the CAAB At the issue or renewal of a B2L licence: — one or several system ratings; and — one or several group/subgroup ratings, should be endorsed on the licence (CAAB Form 26). A licences should be issued with a subcategory without type ratings. B1, B2 and C licences may be issued without an aircraft type or group rating. B2L licences may be issued without an aircraft type or group rating. The B2L licence should always be issued with at least one system rating. This is based on the demonstrated initial experience that at least should be sufficient to endorse one system rating. B3 licences should be issued with the rating ‘piston engine non-pressurised aeroplanes of 2 000 kg MTOM and below’ endorsed as the experience requirement for the rating is at least covered by the 1, 2 or 3 years of experience for that category. AMC 66.B.100 to 115 Aircraft type endorsement should use the standard codes contained in Appendix I to the AMCs. 66.B.105 Procedure for the issue of an aircraft maintenance licence via a maintenance organisation approved in accordance with Annex II (Part-145) (a) A maintenance organisation approved in accordance with Annex II (Part-145), when authorised to carry out this activity by the CAAB, may (i) prepare the aircraft maintenance licence on behalf of the CAAB or (ii) make recommendations to the CAAB regarding the application from an individual for a aircraft maintenance licence so that the CAAB may prepare and issue such licence. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26849 (b) Maintenance organisations referred to in point (a) shall ensure compliance with points 66.B.100 (a) and (b). (c) In all cases, the aircraft maintenance licence can only be issued to the applicant by the CAA. AMC 66.B.105 Procedure for the issue of an aircraft maintenance licence via the Part-145 approved maintenance organisation 1. The maintenance organisation approved under Part-145 should include the procedure in the organisation’s exposition (Chapter 3.16***) and this procedure should be audited by the CAAB at least once in each 12- month period. This procedure should include a limitation stating that it is only applicable to the case where the CAAB for the Part-145 approval and for the Part-66 licence is the same. 2. The Part-145 organisation should check that the experience records have been properly countersigned. 3. The maintenance organisation approved under Part-145 may keep the experience record of applicants in a different form that of application CAAB Form 19 but such different form or manner should be acceptable to the CAAB. *** Applicable from 1 July 2025. Chapter 3.16 will be replaced by Chapter 3.12. 66.B.110 Procedure for the change of an aircraft maintenance licence to include an additional basic category or subcategory (a) At the completion of the procedures specified in points 66.B.100 or 66.B.105, the CAAB shall endorse the additional basic category, subcategory or, for category B2L, system rating(s) on the aircraft maintenance licence by stamp and signature or shall reissue the licence. (b) The record system of the CAAB shall be changed accordingly. (c) Upon request by the applicant, the CAAB shall replace a licence in category B2L with a licence in category B2 endorsed with the same aircraft rating(s) when the holder has demonstrated both of the following: (i) by examination the differences between the basic knowledge corresponding to the B2L licence held and the basic knowledge of the B2 licence, as set out in Appendix I; (ii) the practical experience required in Appendix IV. 26850 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 AMC 66.B.110 Procedure for the change of an aircraft maintenance licence to include an additional basic category or subcategory In the case of computer-generated licences, the licence should be reissued. When the conditions set in the rule for extending a B2L licence to include the B2 category are met, the B2L licence should be replaced by a B2 licence. The B2L licence replaced by a B2 licence should be retained by the CAA. NOTE: AMC 66.B.100 to 115 66.B.115 Procedure for the change of an aircraft maintenance licence to include an aircraft type or to remove limitations (a) On receipt of a satisfactory CAAB Form 19 and any supporting documentation demonstrating compliance with the requirements of the applicable rating together with the accompanying aircraft maintenance licence, CAAB shall either: 1. Endorse the applicant's aircraft maintenance licence with the applicable aircraft rating; or 2. Reissue the said licence to include the applicable aircraft rating; or 3. Remove the applicable limitations in accordance with point 66.A.50. CAAB record system shall be changed accordingly. (b) In the case where the complete type training is not conducted by maintenance training organisation appropriately approved in accordance with Part-147, CAAB shall be satisfied that all type- training requirements are complied with before the type rating is issued. (c) In the case where the On-the-Job Training is not required, the aircraft type rating shall be endorsed based on a Certificate of Recognition issued by a maintenance training organisation approved in accordance with Part-147. (d) In the case where the aircraft type training is not covered by a single course, CAAB shall be satisfied prior to the type rating endorsement that the content and length of the courses fully satisfy the scope of the licence category and that the interface areas have been appropriately addressed. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26851 (e) In the case of differences training, CAAB shall be satisfied that (i) the applicant’s previous qualification, supplemented by (ii) either a course approved in accordance with Part-147 or a course directly approved by CAAB, are acceptable for type rating endorsement. (f) The CAAB shall ensure that compliance with the practical elements of the type training is demonstrated by one of the following: (i) by the provision of detailed practical training records or a logbook provided by a maintenance organisation appropriately approved in accordance with Part-145 or, where available. (ii) where available, by a training certificate covering the practical training element issued by a maintenance training organisation appropriately approved in accordance with Part-147. (g) Aircraft type endorsement shall use the aircraft type ratings specified by CAAB. AMC 66.B.115 Procedure for the change of an aircraft maintenance licence to include an aircraft rating or to remove limitations (a) Where the type training has not been conducted by a Part-147 organisation, there should be supporting documents confirming to CAAB that: • The type training has been approved by CAAB in accordance with 66.B.130, • The applicant has completed the elements of the approved type training; and • The trainee has been successfully examined/assessed. (b) Aircraft type training may be subdivided in airframe and/or powerplant and/or avionics/electrical systems type training courses. 1. Airframe type training course means a type training course including all relevant aircraft structure and electrical and mechanical systems excluding the powerplant. 2. Powerplant type training course means a type training course on the bare engine, including the build-up to a quick engine change unit. 26852 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 3. The interface of the engine/airframe systems should be addressed by either airframe or powerplant type training course. In some cases, such as for general aviation, it may be more appropriate to cover the interface during the airframe course due to the large variety of aircraft that can have the same engine type installed. 4. Avionics/electrical systems type training course means type training on avionics and electrical systems covered by but not necessarily limited to ATA Chapters 22, 23, 24, 25, 27, 31, 33, 34, 42, 44, 45, 46, 73 and 77 or equivalent. (c) For the acceptance of the OJT programme described in Section 6 of Appendix III to Part-66, the licensing CAAB should develop adequate procedures which may be similar to the procedure described in AMC 66.B.130 for the ‘direct approval of aircraft type training’. In the case where the licensing CAAB is different from the CAAB of the maintenance organisation which provides the OJT, the licensing authority may take into consideration the fact that the maintenance organisation may already have the OJT programme accepted by their own CAAB (directly approved or through chapter 3.15 of the MOE, as described in AMC 145.A.70(a)). 66.B.120 Procedure for the renewal of an aircraft maintenance licence validity (a) CAAB shall compare the holder’s aircraft maintenance licence with CAAB records and verify any pending revocation, suspension or change action pursuant to point 66.B.500. If the documents are identical and no action is pending pursuant to point 66. B.500, the holder’s copy shall be renewed for the duration of five years and the file endorsed accordingly. (b) If the CAAB records are different from the aircraft maintenance licence held by the licence holder: 1. CAAB shall investigate the reasons for such differences and may choose not to renew the aircraft maintenance licence; 2. CAAB shall inform the licence holder and any known maintenance organisation approved in accordance with Part-M Subpart F or Part-145 that may be directly affected of such fact. 3. CAAB, if necessary, take action in accordance with point 66.B.500 to revoke, suspend or change the licence in question. evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 26853 AMC 66.B.120 Procedure for the renewal of an aircraft maintenance licence validity The CAAB should not carry out any investigation to ensure that the licence holder is in current maintenance practice as this is not a condition for the renewal of a licence. Ensuring the continued validity of the certification privileges is a matter for the approved Part-145 / Subpart F maintenance organization or the certifying staff in accordance with Part-M, Para M.A.801(b). For the purpose of ensuring the continued validity of the certification privileges CAAB may, when periodically reviewing the organizations in accordance with 145.B.30 (***) or M.B.604, or during on-the-spot checks, request the licence holder to provide documentary evidence of compliance with 66.A.20(b) when exercising certification privileges. *** Applicable from 1 July 2025. Article 145.B.30 will be replaced by Article 145.B.305. 66.B.125 Procedure for the conversion of licences including group ratings (a) Individual aircraft type ratings already endorsed on the aircraft maintenance licence shall remain on the licence and shall not be converted to new ratings unless the licence holder fully meets the requirements for endorsement defined in point 66.A.45 of this Annex (Part-66) for the corresponding group/sub-group ratings. (b) The conversion shall be performed in accordance with the following conversion table: 1. For category B1 or C: - Helicopter piston engine, full group: converted to “full sub-group 2c” plus the aircraft type ratings for those single piston engine helicopters which are in Group 1; - Helicopter piston engine, manufacturer group: converted to the corresponding “manufacturer sub-group 2c” plus the aircraft type ratings for those single piston engine helicopters of that manufacturer which are in Group 1; - Helicopter turbine engine, full group: converted to “full sub-group 2b” plus the aircraft type ratings for those single turbine engine helicopters which are in Group 1; - Helicopter turbine engine, manufacturer group: converted to the corresponding “manufacturer sub-group 2b” plus the aircraft type ratings for those single turbine engine helicopters of that manufacturer which are in Group 1; 26854 evsjv‡`k †M‡RU, AwZwi³, †m‡Þ¤^i 28, 2024 - Aeroplane single piston engine—metal structure, either full group or manufacturer group: converted to “full group 3”. For the B1 licence the following limitations shall be included: composite structure aeroplanes, wooden structure aeroplanes and metal tubing and fabric aeroplanes; - Aeroplane multiple piston engines—metal structure, either full group or manufacturer group: converted to “full group 3” plus the aircraft type ratings for those aeroplanes with multiple piston engines of the corresponding full/manufacturer group which are in Group 1. For the B1 licence the following limitations shall be included: composite structu