The maintenance suite of Civil Aviation Safety Regulations (CASR) Parts 42, 66, 145 and 147 came into effect on 27 June 2011. The effect was to introduce airworthiness regulations broadly harmonised with the European Aviation Safety Agency (EASA) equivalents.
We made changes to the regulations to broaden the scope of privileges for aircraft operators and maintenance organisations and allow a Part 42 Continuing Airworthiness Management Organisation (CAMO) and a Part 145 Approved Maintenance Organisation (AMO) to provide continuing airworthiness management services and aircraft maintenance services for aircraft used in regular public transport.
The changes also introduced the EASA B1 and B2 maintenance licence system and the Part 147 aircraft maintenance training school standards.
Overview of the regulations
Part 42 sets out continuing airworthiness requirements for aircraft and aeronautical products.
Part 66 applies to all personnel seeking an aircraft engineer licence or licence rating and sets out requirements for the application for, the granting of, and the appropriate use of aircraft maintenance engineer licences and ratings.
Part 145 sets out matters relating to approved maintenance organisation and maintenance personnel requiring authorisation for the performance of maintenance certifications and the issue of certificates of release to service to aircraft and aeronautical product maintenance.
Part 147 sets out matters relating to approved maintenance training organisations, training personnel requiring licences and ratings for the performance of maintenance certifications and certificates of release to service for aircraft maintenance.
Read our legislation and guidance documents
The following documents will help you understand and comply with the new regulations.
Understanding the regulations
If you're new to the regulations, read the information below.
- Key benefits of the new regulations
- Who the regulations apply to and how
- Main differences in the approach of the new regulations
- Maintenance regulation questions and answers
Transitioning to the new regulations
- Assessor handbook and worksheets and supporting information (for reference only)
- Using the Manual authoring and assessment tool (MAAT) to help you transition
- Organisations that have transitioned
- Transition guidance documentation
For more information on transitioning to Parts 42 and 145 of the new maintenance regulations please contact the Permission Application Centre (PAC) at email@example.com or by calling 131 757.
Education and training
We have maintenance regulations related training and education initiatives.
New Part 42/145/147 applicants
- Form 42-01 Application for subpart 42.G Approval as a continuing airworthiness management organisation
- Form 145-01 Application for Part 145 approval certificate
- Part 147 application form (Form 547).
If you're not sure if your organisation is a transition applicant or a new applicant, please call our maintenance regulation project on 131 757 or email firstname.lastname@example.org.
Please contact us using our enquiries form if you'd like more information.