EASA Part ML Regulatory Obligations for Regulatory Authorities- 1 Day


Part-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 authorization.

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.)

Main Benefits of Part-M Light

Specifically, these amendments attempt to reduce the impact of the limitations imposed by the Basic Regulation. The main benefits are:

It is simple to understand
It does not require the approval of the maintenance program by the national authorities and deviations to the manufacturer recommendations are possible
Airworthiness reviews can be performed also by maintenance organizations and independent certifying staff
The pilot can defer certain defects without the involvement of maintenance personnel.

Who is the course for?

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.

What is the Benefit of this Training – What will I learn?

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

Detailed Content / Topics – The following Subjects will be addressed

Basic Introduction to EASA Regulations
Continuing Airworthiness The Role of Part M
Continuing Airworthiness The Role of Part ML
Subpart A General
ML.A.101 Scope
Subpart B Accountability
ML.A.201 Responsibilities
ML.A.202 Occurrence reporting
Subpart A General
– ML.B.101 Scope
– ML.B.102 Competent authority
– ML.B.104 Record-keeping
– ML.B.105 Mutual exchange of information
Subpart B Accountability
ML.B.201 Responsibilities
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 CAW record system
ML.A.307 Transfer of aircraft CAW records
Subpart C Continuous Airworthiness
– ML.B.302 Exemptions
– ML.B.303 Aircraft continuing-airworthiness monitoring
– ML.B.304 Revocation, suspension and limitation
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
Subpart I Airworthiness Review Certificate (ARC)
– ML.B.902 Airworthiness review by the competent authority
– ML.B.903 Findings
ML.B.201 Responsibilities

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

Target groups

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.


A background in an aviation airworthiness environment.

Learning Objectives

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.

Certificate Wording

EASA Regulatory Review and Oversight Considerations. Detailed understanding related to Part-ML Regulatory Environment. Continued Airworthiness Management (CAM) including Subpart I Airworthiness Review Process and Airworthiness Review Certificates (ARC). Part ML Continuing Airworthiness Obligations & Functionality, Interface with Combined Airworthiness Organisation Part-CAO

What Do People Say About Sofema Aviation Services’ Trainings?

The discussions among the group were very beneficial.”
“The instructor showed a very resourceful background and experience.”
“All sections of the course were related to my field.”
“Adequate answers were given to specific questions.”


1 webinar training day – consists of 6 actual hours with the appropriate pauses.
Starting time – 10.00 (GMT +3)

Sofema Aviation Services offers a flexible approach to developing all in-company training courses which are specific to the client’s needs. If you would like additional information concerning how course content may be configured to be more appropriate for your organisation please email office@sassofia.com

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