EASA Part ML Regulatory Obligations

Part MBrochure ButtonPart-ML simplifies existing maintenance rules and offers a less prescriptive approach to maintenance programmes, airworthiness reviews, defects deferments and Time Between Overhauls (TBO) extensions. It also provides additional privileges for pilots, owners, independent certifying staff and small maintenance organisations. For example:

The CAA will no longer be involved in the approval of maintenance programmes for Light Aircraft.

A new Airworthiness Review Certificate (EASA Form 15c) is introduced that can be issued by the CAA, by an approved organisation or by independent Part-66 engineers with appropriate authorisation.

Part-ML applies to the following aircraft when not listed in the air operator certificate (AOC) of an air carrier licensed in accordance with regulation (EC) No 1008/2008 and not classified as a complex motor-powered aircraft. (It is applicable to both private and commercial operations of aeroplanes):

Aeroplanes of 2730 kg maximum take-off mass (MTOM) or less
Rotorcrafts with a 1200 kg MTOM or less, certified with a maximum of 4 occupants
Other EL2 aircraft (Note - This means that all sailplanes and balloons are also included.)


It is for persons who are involved in EU General Aviation including Maintenance & Quality Staff, CAMOs, as well as anyone with an interest to achieve an effective understanding of the Part M Light Environment and Airworthiness Review Process.

The course will also be of interest to Inspectors and Management Personnel of Civil Aviation Authorities.


a) Achieve a solid understanding related to Part-ML Environment Continued Airworthiness Management (CAM) including Subpart I Airworthiness Review Certificates (ARC)
b) Be able to demonstrate Part-ML Understanding and Functionality and to be able to avoid or mitigate problems
c) Be able to use the regulation to understand the engagement with the Combined Airworthiness Organisation (CAO).


  • Introduction
  • Definitions
  • Basic Introduction to EASA regulations
  • Subpart A General
  • Subpart B Accountability

- ML.A.201 Responsibilities
- ML.A.202 Occurrence reporting

  • Subpart C Continuous Airworthiness

- ML.A.301 Continuing-airworthiness tasks
- ML.A.302 Aircraft maintenance programme
- ML.A.303 Airworthiness directives
- ML.A.304 Data for modifications and repairs
- ML.A.305 Aircraft continuing-airworthiness record system
- ML.A.307 Transfer of aircraft continuing-airworthiness records

  • Subpart D Maintenance Standards

- ML.A.401 Maintenance data
- ML.A.402 Performance of maintenance
- ML.A.403 Aircraft defects

  • Subpart E Components

- ML.A.501 Classification and installation
- ML.A.502 Component maintenance
- ML.A.503 Service-life-limited components
- ML.A.504 Control of unserviceable components

  • Subpart H Certificate of Release to Service (CRS)

- ML.A.801 Aircraft certificate of release to service
- ML.A.802 Component certificate of release to service
- ML.A.803 Pilot-owner authorisation

  • Subpart I Airworthiness Review Certificate (ARC)

- ML.A.901 Aircraft airworthiness review
- ML.A.902 Validity of the airworthiness review certificate
- ML.A.903 Airworthiness review process
- ML.A.904 Qualification of Airworthiness Review Staff
- ML.A.905 Transfer of aircraft registration within the Union
- ML.A.906 Airworthiness review of aircraft imported into the Union
- ML.A.907 Findings

  • Appendix I - Continuing-airworthiness management contract
  • Appendix II - Limited Pilot-owner maintenance
  • Appendix III - Complex maintenance tasks not to be released by the Pilot-owner
  • Appendix IV - Airworthiness review certificate (EASA Form 15c)


General Aviation, Maintenance & Quality Staff, CAO - CAMO Staff, and Airworthiness Review Process.
The course will also be of interest to Inspectors and Management Personnel of Civil Aviation Authorities.


The primary purpose of this training is to provide a thorough understanding of the Role of Part-ML in specific the area of the Maintenance CAMO & ARC. The course also aims to provide a full understanding of the regulations and considers in details all relevant procedures, responsibilities and tasks.
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Course type: Presentation without voice over
Duration equivalent to 1-day classroom training
Category: Part M
Price: 85 EUR


This course is part of the following programs:
General Aviation CAMO Learning Path Diploma
General Aviation EASA Regulatory Package - Part ML & Part CAO


3 to 5 courses/delegates - 5%
6 to 10 courses/delegates - 10%
11 to 24 courses/delegates - 15%
25 to 49 courses/delegates - 20%
> 50 courses/delegates - 25%