How can I demonstrate compliance with the Part-66 theoretical basic knowledge requirements?

A

How can I demonstrate compliance with the Part-66 theoretical basic knowledge requirements?

Compliance with the Part-66 basic knowledge requirements may be demonstrated by:

  • a Certificate of Recognition (CoR) on EASA Form 148, if issued by 11 June 2024;
  • a Certificate of Recognition on EASA Form 148a issued by a Part-147 approved maintenance training organisation;
  • a Certificate of Recognition on EASA Form 148b issued by the competent authority; or
  • basic knowledge examination credits under point 66.A.25(d), supported by reference to an examination credit report approved by the competent authority.

Applicants must meet all basic knowledge module requirements applicable to the relevant AML category or subcategory as specified in Annex III (Part-66).

The basic knowledge modules required for each AML category and subcategory are shown in the table below.

CategoryRequired modules
A11, 2, 3, 5, 6, 7, 8, 9, 10, 11, 15, 17
A21, 2, 3, 5, 6, 7, 8, 9, 10, 11, 16, 17
A31, 2, 3, 5, 6, 7, 8, 9, 10, 12, 15
A41, 2, 3, 5, 6, 7, 8, 9, 10, 12, 16
B1.11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 15, 17
B1.21, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 16, 17
B1.31, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15
B1.41, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16
B1.E1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 17, 18
B21, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14
B2L1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14
B31, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 16, 17
CBasic knowledge requirements for category B1 or B2
L11L, 2L, 3L, 4L, 5L, 6L, 7L, 12L
L1C1L, 2L, 3L, 5L, 7L, 12L
L21L, 2L, 3L, 4L, 5L, 6L, 7L, 8L, 12L
L2C1L, 2L, 3L, 5L, 7L, 8L, 12L
L3G1L, 2L, 3L, 10L
L3H1L, 2L, 3L, 9L
L4G1L, 2L, 3L, 8L, 10L, 11L, 12L
L4H1L, 2L, 3L, 8L, 9L, 11L, 12L
L5The basic knowledge requirements for the relevant B1 subcategory, plus Modules 10L, 11L and 12L; only the applicable propulsion-related subjects of Module 8L are required, depending on the B1 subcategory the applicant comes from.

Reference: 66.A.25; Appendices I and II to Annex III (Part-66) for categories A, B1, B2, B2L, B3 and C; Appendices VII and VIII to Annex III (Part-66) for category L; Appendix III to Annex IV (Part-147) for EASA Forms 148a and 148b.

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Datum publikace: 21. 8. 2026
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