Frequently Asked Questions Advanced Search Advanced Search Close Panel All of these words This exact phrase Any of these words Without these words Search within: CAASWhole of Government Expand All Collapse All Aviation SafetyAircraft Maintenance licensing 1. What are the requirements for an Aircraft Maintenance Licence (AML)? To qualify for an AML, you must meet the following requirements: be at least 21 years of age; be able to read, write and communicate in English to an understandable level necessary for the technical work of an aircraft maintenance engineer; and be able to demonstrate a need to hold the licence (i.e. your application must be supported by an approved aircraft maintenance organisation or a Singapore air operator). In addition, you will need to pass the relevant SAR-66 examinations and demonstrate sufficient experience (with a Schedule of Experience (SOE)) applicable to the category of AML you are applying for. Further details can be found in the Singapore Airworthiness Regulations (SAR) Part 66. 2. How can I apply for an AML? To apply for an AML, you will need to complete the Application for SAR-66 Aircraft Maintenance Licence form and submit it together with the relevant supporting documents listed in the form. 3. How do I apply for an endorsement of an aircraft type rating on my AML? To apply for an endorsement of an aircraft type rating on your AML, you will need to complete and submit the the application form together with the applicable supporting documents as listed in the form. 4. When should I renew my AML? You may renew your AML as early as 3 months before its expiry. However, do take note to submit your renewal at least 2 weeks before its expiry. 5. How can I renew my AML? You may renew your AML by submitting the Licence Renewal form to CAAS, together with the renewal fee (stated in the form). You may make payment by credit card or a crossed cheque made payable to the "Civil Aviation Authority of Singapore". If your AML has expired, please refer to this Advisory Circular for the requirements and process to renew it. 6. How do I convert a foreign AML to a Singapore AML? To convert a foreign AML to a Singapore AML, you must meet certain pre-requisites, as well as submit the AML application form together with the necessary supporting documents. You may refer to this Advisory Circular for the details. 7. My SAR-66 AML has lapsed. Is it still possible to renew my licence? There may be additional requirements to be satisfied for the renewal of a lapsed SAR-66 AML. Please refer to the Advisory Circular (AC66-11) for the requirements and process to renew a lapsed SAR-66 AML. If you are unable to find an answer to your query, please submit your Feedback to let us know how we can help you.