Commission Implementing Regulation (EU) 2025/111 of 23 January 2025 amending Regulation (EU) No 1321/2014 as regards continuing airworthiness for electric- and hybrid-propulsion aircraft and other non-conventional aircraft

• (10) Appendix IV is replaced by the following:

‘Appendix IV

Experience and basic knowledge modules or part modules required for extending a Part-66 aircraft maintenance licence

A. Experience requirements

Table A below shows the experience requirements, in months, for adding a new category or subcategory to an existing Part-66 licence.

The experience requirements can be reduced by 50 % if the applicant has completed an approved Part-147 basic training course relevant to a particular subcategory.

Table A

To: From:	A1	A2	A3	A4	B1.1	B1.2	B1.E	B1.3	B1.4	B2	B2L	B3	L1	L2	L3	L4	L5
A1	—	6	6	6	24	6	6	24	12	24	12	6	12	12	12	12	24
A2	6	—	6	6	24	6	6	24	12	24	12	6	12	12	12	12	24
A3	6	6	—	6	24	12	12	24	6	24	12	12	12	12	12	12	24
A4	6	6	6	—	24	12	12	24	6	24	12	12	12	12	12	12	24
B1.1	—	6	6	6	—	6	6	6	6	12	12	6	6	6	12	12	12
B1.2	6	—	6	6	24	—	6	24	6	24	12	—	—	—	12	12	12
B1.E	6	6	6	6	24	6	—	24	12	24	12	6	6	6	12	12	12
B1.3	6	6	—	6	6	6	6	—	6	12	12	6	6	6	12	12	12
B1.4	6	6	6	—	24	6	12	24	—	24	12	6	6	6	12	12	12
B2	6	6	6	6	12	12	12	12	12	—	—	12	6	6	12	12	24
B2L	6	6	6	6	12	12	12	12	12	12	—	12	6	6	12	12	24
B3	6	—	6	6	24	6	12	24	12	24	12	—	—	—	12	12	12
L1	24	24	24	24	36	24	24	36	24	36	24	24	—	68	128	128	24
L2	24	12	24	24	36	12	12	36	24	36	24	12	—	—	128	128	24
L3	30	30	30	30	48	30	30	48	30	48	30	30	128	128	—	68	24
L4	30	30	30	30	48	30	30	48	30	48	30	30	128	128	—	—	24
L5	24	24	24	24	36	24	24	36	24	36	24	24	128	128	128	—	—

B. Basic knowledge modules or part modules required

The purpose of this table is to outline the examinations required to add a new basic (sub)category to an AML granted in accordance with this Annex.

The syllabi prepared in accordance with Appendix I and Appendix VII require different levels of knowledge for different licence categories within a module; therefore, there are additional examinations applicable to certain modules for licence holders wishing to extend an AML granted in accordance with this Annex to include another (sub)category, and an analysis of the module shall be conducted to determine the subjects missing or passed at a lower level.

Table B

To: From:	A1	A2	A3	A4	B1.1	B1.2	B1.E	B1.3	B1.4	B2	B2L	B3	L1C	L1	L2C	L2	L3H	L3G	L4H	L4G	L5
A1	None	16.	12.	12, 16.	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 2, 8, 9.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 9.
A2	11, 15.	None	12, 15.	12.	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 2, 8, 9.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 9.
A3	11, 17.	11, 16, 17.	None	16.	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 2, 8, 9.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 9.
A4	11, 15, 17.	11, 17.	15.	None	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 9.	All except 2, 8, 9.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 2L.	All except 9.
B1.1	None	16.	12.	12, 16.	None	16.	18.	12.	12, 16.	4, 5, 13, 14	4, 5, 13SQ, 14SQ	16.	12L.	12L.	8L2, 12L.	8L2, 12L.	9L.	10L.	8L2, 9L, 11L, 12L.	8L2, 10L, 11L, 12L.	8L2, 10L, 11L, 12L.
B1.2	11, 15.	None	12, 15.	12.	11, 15.	None	18.	12, 15.	12.	4, 5, 13, 14	4, 5, 13SQ. 14SQ	None	12L.	12L.	8L1, 12L.	8L1, 12L.	9L.	10L.	8L1, 9L, 11L, 12L.	8L1, 10L, 11L, 12L.	8L1, 10L, 11L, 12L.
B1.E	11, 15.	114, 16	12, 15.	12, 16.	11, 15.	114, 16	None	12, 15.	12, 16.	4, 5, 13, 14	4, 5, 13SQ, 14SQ	114, 16.	12L.	12L.	8L3, 12L.	8L3, 12L.	9L.	10L.	8L3, 9L, 11L, 12L.	8L3, 10L, 11L, 12L.	8L3, 10L, 11L, 12L.
B1.3	11, 17.	11, 16, 17.	None	16.	11, 17.	11, 16, 17.	11, 17, 18.	None	16.	4, 5, 13, 14	4, 5, 13SQ, 14SQ	11, 16, 17.	7L, 12L.	7L, 12L.	7L, 8L2, 12L.	7L, 8L2, 12L.	9L.	10L.	8L2, 9L, 11L, 12L.	8L2, 10L, 11L, 12L.	8L2, 10L, 11L, 12L.
B1.4	11, 15, 17.	11, 17.	15.	None	11, 15, 17.	11, 17.	11, 17, 18.	15.	None	4, 5, 13, 14	4, 5, 13SQ, 14SQ	11, 17.	7L, 12L.	7L, 12L.	7L, 8L1, 12L.	7L, 8L1, 12L.	9L.	10L.	8L1, 9L, 11L, 12L.	8L1, 10L, 11L, 12L.	8L1, 10L, 11L, 12L.
B2	7, 11, 15, 17.	7, 11, 16, 17.	7, 12, 15.	7, 12, 16.	6, 7, 11, 15, 17.	6, 7, 11, 16, 17.	6, 7, 11, 17, 18.	6, 7, 12, 15.	6, 7, 12, 16.	None	None	6, 7, 11, 16, 17.	5L, 7L.	4L, 5L, 6L, 7L.	5L, 7L, 8L.	4L, 5L, 6L, 7L, 8L.	9L.	10L.	8L, 9L, 11L.	8L, 10L, 11L.	6, 7, [11 or 127], [15, 16 or 18], 17, 8L8, 10L, 11L
B2L	7, 11, 15, 17.	7, 11, 16, 17.	7, 12, 15.	7, 12, 16.	6, 7, 11, 15, 17.	6, 7, 11, 16, 17.	6, 7, 11, 17, 18.	6, 7, 12, 15.	6, 7, 12, 16.	13SQ, 14SQ.	None	6, 7, 11, 16, 17.	5L, 7L, 12LSQ.	4L, 5L, 6L, 7L, 12LSQ.	5L, 7L, 8L, 12LSQ.	4L, 5L, 6L, 7L, 8L, 12LSQ.	9L.	10L.	8L, 9L, 11L,12LSQ.	8L, 10L, 11L, 12LSQ.	6, 7, [11 or 127], [15, 16 or 18], 17, 8L8, 10L, 11L, 12LSQ
B3	11, 15.	11	12, 15.	12.	2, 3, 5, 8, 11, 15.	2, 3, 5, 8, 11.	2, 3, 5, 8, 11, 18.	2, 3, 5, 8, 12, 15.	2, 3, 5, 8, 12.	2, 3, 4, 5, 8, 13, 14.	2, 3, 4, 5, 8, 13SQ, 14SQ.	None	12L.	12L.	8L1, 12L.	8L1, 12L.	9L.	10L.	8L1,9L, 11L, 12L.	8L1,10L, 11L, 12L.	2, 3, 5, 8, [11 or 12], 8L1, 10L, 11L, 12L.

To From	To From	A1	A2	A3	A4	B1.1	B1.2	B1.E	B1.3	B1.4	B2	B2L	B3	L1C	L1	L2C	L2	L3H	L3G	L4H	L4G	L5
L1C	L1C	All	All	All	All	All	All	All	All	All	All	All	All	None	4L, 6L.	8L.	4L, 6L, 8L.	9L.	10L.	8L, 9L, 11L.	8L, 10L, 11L.	All except 12L.
L1	L1	All	All	All	All	All	All	All	All	All	All	All	All	None	None	8L.	8L.	9L.	10L.	8L, 9L, 11L.	8L, 10L, 11L.	All except 12L.
L2C	L2C	All	All	All	All	All	All	All	All	All	All	All	All	None	4L, 6L.	None	4L, 6L.	9L.	10L.	9L, 11L.	10L, 11L.	All except 8L and 12L.
L2	L2	All	All	All	All	All	All	All	All	All	All	All	All	None	None	None	None	9L.	10L.	9L, 11L.	10L, 11L.	All except 8L and 12L.
L3H	L3H	All	All	All	All	All	All	All	All	All	All	All	All	5L, 7L, 12L.	4L, 5L, 6L, 7L, 12L.	5L, 7L, 8L, 12L.	4L, 5L, 6L, 7L, 8L, 12L.	None	10L.	8L, 11L, 12L.	8L, 10L, 11L, 12L.	All.
L3G	L3G	All	All	All	All	All	All	All	All	All	All	All	All	5L, 7L, 12L.	4L, 5L, 6L, 7L, 12L.	5L, 7L, 8L, 12L.	4L, 5L, 6L, 7L, 8L, 12L.	9L.	None	8L, 9L, 11L, 12L.	8L, 11L, 12L.	All except 10L.
L4H	L4H	All	All	All	All	All	All	All	All	All	All	All	All	5L, 7L.	4L, 5L, 6L, 7L.	5L, 7L.	4L, 5L, 6L, 7L.	None	10L.	None	10L.	All except 8L, 11L and 12L.
L4G	L4G	All	All	All	All	All	All	All	All	All	All	All	All	5L, 7L.	4L, 5L, 6L, 7L.	5L, 7L.	4L, 5L, 6L, 7L.	9L.	None	9L.	None	All except 8L, 10L, 11L and 12L.
L510	B1.1	None	None	12.	12.	None	166.	18.	12.	12, 166.	4, 5, 13.	4, 5, 13SQ.	166.	None	None	None	None	9L.	None	9L.	None	None
L510	B1.2	11.	None	12.	12.	11, 15.	None	18.	12, 15.	12.	4, 5, 13.	4, 5, 13SQ.	None	None	None	None	None	9L.	None	9L.	None	None
L510	B1.E	11.	None	12.	12.	11, 15.	114, 166.	None	12, 15.	12, 166.	4, 5, 13.	4, 5, 13SQ.	114, 166.	None	None	None	None	9L.	None	9L.	None	None
L510	B1.3	11.	11.	None	None	11, 175.	11, 166, 175.	11, 175, 18.	None	166.	4, 5, 13.	4, 5, 13SQ.	11, 166, 175.	7L.	7L.	7L.	7L.	9L.	None	9L.	None	None
L510	B1.4	11.	11.	None	None	11, 15, 175.	11, 175.	11, 175, 18.	15.	None	4, 5, 13.	4, 5, 13SQ.	11, 175.	7L.	7L.	7L.	7L.	9L.	None	9L.	None	None

Note: “All” means all the relevant elements of the modules identified in point “2. Modularisation” of Appendix I or in point “1. Modularisation” of Appendix VII for the target (sub)category (i.e. the (sub)category mentioned in the row “To”).

SQ = it depends on system qualification.

¹: excluding the subjects related to piston engines and when “From: B1.2” or “From: B3” excluding also the subjects related to propeller.

²: excluding the subjects related to turbine engines and when “From: B1.1” excluding also the subjects related to propeller.

³: excluding the subjects related to electric engines and propeller.

⁴: submodule “11.10” only.

⁵: submodule “17.4” only.

⁶: submodule “16.12” only.

⁷: modules 12 and 18 cannot be chosen together.

⁸: only some applicable subjects of module 8L are required depending on the module [11 or 12] and [15, 16 or 18] chosen.

⁹: the (sub)module(s) identified in each cell shall be taught to the knowledge level identified in point “2. Modularisation” of Appendix I or in point “1. Modularisation” of Appendix VII corresponding to the target (sub)category (i.e. the (sub)category mentioned in the row “To”).

¹⁰: Use sub-row B1.x based on the B1 subcategory that provided access to the L5 licence (refer to point “1. Modularisation” of Appendix VII).

’

• (11) Appendix V, EASA Form 19, is amended as follows:

• (a) the first page of EASA Form 19 is replaced by the following:

Image omitted; see official source

Image omitted; see official source

• (b) the identification of the form ‘EASA FORM 19 Issue 5’ is replaced by ‘EASA FORM 19 Issue 6’;

• (12) Appendix VI, EASA Form 26, is amended as follows:

• (a) in the first page ‘EASA FORM 26 Issue 6’ is replaced by ‘EASA FORM 26 Issue 7’;

• (b) Section IX. Part-66 CATEGORIES is replaced by the following:

• (c) the identification of the form ‘EASA Form 26 Issue 5’ is replaced by ‘EASA Form 26 Issue 7’;

ANNEX IV

Annex IV (Part-147) to Regulation (EU) No 1321/2014 is amended as follows:

• (1) in the table in Appendix I, the following row is inserted between the row corresponding to subcategory B1.2 and the row corresponding to subcategory B1.3:

• (2) Appendix II, EASA Form 11, is amended as follows:

• (a) the identification of the form ‘EASA Form 11 Issue 6’ is replaced by ‘EASA Form 11 Issue 7’;

• (b) the second page of the form is replaced by the following:

Image omitted; see official source

Image omitted; see official source

• (3) in point 2 of Appendix III, the second paragraph is replaced by the following:

‘The certificate shall indicate the airframe/engine (or power plant) combination for which the training was imparted.’.

ANNEX V

Annex Vb (Part-ML) to Regulation (EU) No 1321/2014 is amended as follows:

• (1) in point ML.1, point (a) is replaced by the following:

• ‘(a) In accordance with Article 3(2), this Annex (Part-ML) applies to the following other than complex motor-powered aircraft not listed in the air operator certificate of an air carrier licensed in accordance with Regulation (EC) No 1008/2008:

• (1) aeroplanes of 2 730 kg maximum take-off mass (MTOM) or less;

• (2) helicopters of 1 200 kg MTOM or less, certified for a maximum of up to four occupants;

• (3) other ELA2 aircraft;

• (4) non-conventional aircraft with a MTOM of:

• (i) 1 200 kg or less if they can maintain zero horizontal speed in flight; or

• (ii) 2 730 kg or less for other than those in point (i).’;

• (2) point (d) of point ML.A.302 is amended as follows:

• (i) point (2)(f) is replaced by the following:

• ‘(f) in the case of aeroplanes, as applicable to the aircraft power plant:

• (i) operational tests for power and revolutions per minute (rpm), magnetos, fuel and oil pressure, engine temperatures;

• (ii) for engines equipped with automated engine control, the published run-up procedure;

• (iii) for dry-sump engines, engines with turbochargers and liquid-cooled engines, an operational test for signs of disturbed fluid circulation;

• (iv) in respect of a power plant other than piston engine, the maintenance tasks as defined in the ICA issued by the DAH of the aeroplane;’;

• (ii) the last paragraph is replaced by the following:

‘As long as this Annex does not specify an MIP for aircraft other than aeroplanes, sailplanes and balloons, their AMP shall be based on the ICA issued by the DAH, as referred to in point (c)(2)(b).’;

• (3) in Appendix III, the following points (ca) and (cb) are inserted:

• ‘(ca) the performance of maintenance on the power plant that would require disassembly of engine(s), main batteries or fuel cell(s), other than removing them from the aircraft and reinstalling them back (including removal/installation of engine bearings);

• (cb) the performance of maintenance on high-pressure reservoirs and components belonging to high-pressure lines/systems related to the power plant;’

ANNEX VI

Annex Vd (Part-CAO) to Regulation (EU) No 1321/2014 is amended as follows:

• (1) point CAO.A.020(a) is amended as follows:

• (a) points (1), (2) and (3) are replaced by the following:

• ‘(1) For aeroplanes of more than 2 730 kg maximum take-off mass (MTOM) and for helicopters of more than 1 200 kg MTOM or certified for more than four occupants and for other aircraft which are not ELA2, the scope of work shall indicate the particular aircraft types. Changes to this scope of work shall be approved by the competent authority in accordance with point (a) of point CAO.A.105 and point (a) of point CAO.B.065.

• (2) For engines other than piston or electric, the scope of work shall indicate the engine manufacturer or group or series or type or the maintenance task(s). Changes to this scope of work shall be approved by the competent authority in accordance with point (a) of point CAO.A.105 and point (a) of point CAO.B.065.

• (3) A CAO which employs only one person for both planning and carrying out of all maintenance tasks cannot hold privileges for the maintenance of:

• (a) aeroplanes, helicopters and other aircraft which are not ELA2, if their power plant is other than electric or piston engine(s) (in the case of aircraft-rated organisations);

• (b) helicopters equipped with more than one piston engine (in the case of aircraft-rated organisations);

• (c) complete engines other than piston engines with output power below 450 HP or electric engines (in the case of engine-rated organisations).’;

• (b) in point (4), points (xxi) and (xxii) are replaced by the following:

• ‘(xxi) C21: water ballast;

• (xxii) C22: propulsion augmentation;’;

• (c) in point (4), the following point (xxiii) is added:

• ‘(xxiii) C23: other.’;

• (2) in point CAO.A.105, point (a) is replaced by the following:

• ‘(a) In order to enable the competent authority to determine continued compliance with this Annex, the CAO shall notify the competent authority of any proposal to carry out any of the following changes, before such changes take place:

• (1) changes affecting the information contained in the approval certificate laid down in Appendix I and the terms of approval of this Annex;

• (2) changes of the persons referred to in points CAO.A.035(a) and (b);

• (3) changes in the aircraft types covered by the scope of work referred to in point (a)(1) of point CAO.A.020 in the case of aeroplanes of more than 2 730 kg maximum take-off mass (MTOM), helicopters of more than 1 200 kg MTOM or certified for more than four occupants and for any other aircraft which is not an ELA2;

• (4) changes in the scope of work referred to in point (a)(2) of CAO.A.020 in the case of engines other than piston or electric;

• (5) changes in the control procedure set out in point (b) of this point.’;

• (3) Appendix I is amended as follows:

• (a) point (c) is replaced by the following:

• ‘(c) An engine rating (turbine, piston, electric or other) means that the CAO may carry out maintenance on the uninstalled engine and engine components, in accordance with engine maintenance data or, if agreed by the competent authority, in accordance with component maintenance data, only whilst such components are fitted to the engine. Nevertheless, such engine-rated CAO may temporarily remove a component for maintenance in order to improve access to that component except when such removal creates the need for additional maintenance not eligible for the requirements of point (c). An engine-rated CAO may also carry out maintenance on an installed engine during base and line maintenance subject to a control procedure in the CAE to be approved by the competent authority.’;

• (b) the identification of the form ‘EASA Form 3-CAO, Issue 1’ is replaced by ‘EASA Form 3-CAO, Issue 2’;

• (c) the second page of the form is replaced by the following:

Image omitted; see official source

Image omitted; see official source

Image omitted; see official source

ELI: http://data.europa.eu/eli/reg_impl/2025/111/oj

ISSN 1977-0677 (electronic edition)