Published date: 18 April 2023


This AC describes an acceptable means of compliance with the maintenance and manufacturing rules set out in Part 43, Part 145, Part 148, and the documentation for the installation of parts in accordance with Part 21.

It also includes material for persons responsible for manufacture of aircraft components and maintenance of aircraft and components, and provides acceptable techniques, methods, and practices in relation to CAA Form One – authorised release certificate.

Related rules

This AC relates specifically to:

Change notice

Revision 2 corrects formatting and other errors. It also adds a section on AC145-2, Advice for Aviation Maintenance Organisations on the Technical Agreement Maintenance (TA-M) between Singapore and New Zealand Civil Aviation Authorities. This AC provides guidance for approved New Zealand-based Part 145-certificated Aircraft Maintenance Organisations (AMOs) to perform maintenance on CAAS civil aeronautical products in accordance with the requirements of NZ Part 145.

Lastly it adds a Version History.