14 CFR § 61.199 - Reinstatement requirements of an expired flight instructor certificate.
(a) Flight instructor certificates. The holder of an expired flight instructor certificate who has not complied with the flight instructor renewal requirements of § 61.197 may reinstate that flight instructor certificate and ratings by filing a completed and signed application with the FAA and satisfactorily completing one of the following reinstatement requirements:
(3) For military instructor pilots, provide a record showing that, within the preceding 6 calendar months from the date of application for reinstatement, the person -
(ii) Completed a U.S. Armed Forces' instructor pilot or pilot examiner training course and received an additional aircraft rating qualification as a military instructor pilot or pilot examiner that is appropriate to the flight instructor rating sought.
(b) Flight instructor ratings.
(2) The holder of a flight instructor rating or a limited flight instructor rating on a pilot certificate may be issued a flight instructor certificate with the current ratings, but only if the person passes the required knowledge and practical test prescribed in this subpart for the issuance of the current flight instructor certificate and rating.
(c) Certain military instructors and examiners. The holder of an expired flight instructor certificate issued prior to October 20, 2009, may apply for reinstatement of that certificate by presenting the following:
(1) A record showing that, since the date the flight instructor certificate was issued, the person passed a U.S. Armed Forces instructor pilot or pilot examiner proficiency check for an additional military rating; and
(2) A knowledge test report that shows the person passed a knowledge test on the aeronautical knowledge areas listed under § 61.185(a) appropriate to the flight instructor rating sought and the knowledge test was passed within the preceding 24 calendar months prior to the month of application.
(d) Expiration date. The requirements of paragraph (c) of this section will expire on August 26, 2019.