Application for Supplemental Type Certificate (STC)
For any major changes to the design of an aircraft, a Supplemental Type Certificate (STC) is required from CAAS as approval for the change. A major change is a change that might appreciably affect the weight, balance, structural strength, and other aircraft characteristics.
A STC is granted by CAAS upon satisfactory compliance of your organisation’s proposed changes with applicable airworthiness design standards and assessment that these changes will not introduce any safety issues.
CAAS has inked agreements with foreign civil aviation authorities that allows for validation of foreign STCs. You may find the list of agreements at this page.
For more information on the requirements, please refer to Singapore Airworthiness Requirements Part 21 (PDF, 286 KB), Subpart C.
Note: All costs incurred for the application evaluation will be recovered from you. The application fees are prescribed in the Singapore Airworthiness Requirements Part 21 (PDF, 286 KB) and Twelfth Schedule of the Singapore Air Navigation Order (PDF, 1 MB).
To apply, please call +65 6595 6764 or email firstname.lastname@example.org . An officer will be assigned to guide you through the application process.
You may access the application form for the Supplemental Type Certificate - CAAS(AW)212 here.
Please click here (PDF, 496 KB) to download the list of STC issued. This list is updated on a monthly basis.