Page Content How to apply Please complete the following steps to initiate your membership application: Step #1. Review the TRAINAIR PLUS Operations Manual (TPOM). Step #2. Complete the Application Cover Letter ( Once completed and signed, the application cover letter should be uploaded in the online application form detailed in step #3).The application letter should be on the letterhead of the training centre or organization and addressed to: Mr. Meshesha BelaynehActing Chief, Global Aviation Training Office (GAT)email@example.com firstname.lastname@example.org Step # 3. Complete the online application form. For any enquiries, please email us at email@example.com.