Part-21 including Part-26 Familiarization

Overview

Part-21 and Part-26 familiarisation: distinguish design approval, production conformity, release evidence, installation eligibility, certification bases and the current aircraft certificate routes. Includes the August 2026 amendments in Regulations (EU) 2026/56 and 2026/100 and their relationship to AMC/GM. 15 sections include 45 scenario decisions with immediate explanatory feedback. The 12 classroom-equivalent hours are a planning estimate, not measured seat time or a regulatory minimum. Completion does not confer a licence, approval or organisational authorisation. Practice is optional and ungraded; no written submission or upload is required. The final assessment draws 12 questions from a 24-question bank, with 75% (9 correct answers) required to pass.

This online aviation training course is designed for controlled seat assignment, recorded trainee progress, final assessment, and certificate issue after passing.

Course revision 2, reviewed 2026-09-10. References support the training scope; operational use requires current applicable rules and the organisation’s accepted procedures.

Syllabus

15 modules, completed in order — each with its keywords and objective.

1. 1

   Welcome and course scope

   scopeaudiencestructureassessment

   Objective: Orient to the Part-21 familiarization scope and assessment.

2. 2

   The regulatory map - where Part-21 sits

   748/2012initial airworthinessregulatory map

   Objective: Place Part-21 within the initial-airworthiness regulatory map.

3. 3

   The airworthiness lifecycle at a glance

   designproductioncertificationreleaselifecycle

   Objective: Describe the airworthiness lifecycle from design to release.

4. 4

   Subpart A - the general provisions every holder shares

   Subpart Ageneral provisionsobligationsmarking

   Objective: Explain the Subpart A general provisions shared by all holders.

5. 5

   Subpart B - type certificates

   type certificateTCtype designcertification basis

   Objective: Describe how type certificates are obtained under Subpart B.

6. 6

   Subparts D and E - changes and supplemental type certificates

   changesSTCmajor/minorSubpart D/E

   Objective: Distinguish changes and STCs under Subparts D and E.

7. 7

   Subparts F and G - production and the POA

   productionPOASubpart F/Gconformity

   Objective: Explain production under Subpart F and the POA under Subpart G.

8. 8

   Subpart J - design organisations (DOA)

   DOAdesign organisationprivilegesSubpart J

   Objective: Describe the design organisation approval under Subpart J.

9. 9

   Subparts H and I - certificates of airworthiness and noise

   CofAnoise certificateSubpart H/IARC

   Objective: Explain certificates of airworthiness and noise under Subparts H and I.

10. 10

    Subparts K, M and Q - parts, repairs and identification

    partsrepairsidentificationSubpart K/M/QForm 1

    Objective: Describe parts, repairs and identification under Subparts K, M and Q.

11. 11

    Subpart O - ETSO authorisations

    ETSOarticlesauthorisationSubpart O

    Objective: Explain ETSO authorisations under Subpart O.

12. 12

    Certification Specifications and permits to fly

    CSCS-ETSOpermit to flySubpart P

    Objective: Relate the Certification Specifications and permits to fly to Part-21.

13. 13

    Section B, Part-21 Light and what 2026/100 changes

    Section BPart-21 Light2026/100authority procedures

    Objective: Summarise Section B, Part-21 Light and the 2026/100 changes.

14. 14

    Part-26 - additional airworthiness specifications

    Part-262015/640retroactivein-service

    Objective: Explain Part-26 additional airworthiness specifications for in-service aircraft.

15. 15

    Summary, document map and citation discipline

    summarydocument mapcitationparagraph numbers

    Objective: Consolidate the document map and apply citation discipline.

Final assessment

• Format: 12 multiple-choice questions drawn from the course question bank, with the options shuffled each attempt.
• Pass mark: 75%.
• Certificate: issued automatically on passing, according to Regulation (EU) No 748/2012, including Regulations (EU) 2026/56 and 2026/100; Regulation (EU) 2015/640 (Part-26); applicable EASA CS and AMC/GM, including ED Decision 2026/005/R. Reviewed 10 September 2026..