Application for Repair Design Approval

Designs for repairs to Singapore-registered aircraft and aircraft components must be approved by CAAS or CAAS-approved design organisations.

Major repair designs that appreciably affect the weight, balance, structural strength, performance, power-plant operation, flight characteristics or other qualities affecting airworthiness; or one that is not done according to accepted practices or elementary operations must be approved by CAAS.

Minor repair designs may approved by either CAAS or a Design Organisation Approval holder with the appropriate scope of approval granted by CAAS.

CAAS has inked agreements with foreign civil aviation authorities that allows for validation of foreign repair design approvals. You may find the list of agreements at this page.

For more information on the requirements, please refer to the Singapore Airworthiness Requirements (SAR) Part 21, Subpart F.

Repair Design Approval Application

Note: All costs incurred for the application evaluation will be recovered from you. The application fees are prescribed in the Singapore Airworthiness Requirements (SAR) Part 21 and Twelfth Schedule of the Singapore Air Navigation Order (ANO).

To apply, please contact us. An officer will be assigned to guide you through the application process.


You may access the application form for the Repair Design Approval - CAAS(AW)206 here.

Last Updated on 04 December 2023