Under regulations prescribed by the Secretary concerned, when a member of a reserve component or the National Guard, who is entitled to compensation under
section 206 of this title, meets the definition of eligible career enlisted flyer, the Secretary concerned may increase the member’s compensation by an amount equal to
1⁄
30 of the monthly incentive pay authorized by the Secretary concerned under subsection (d) for a member of corresponding years of aviation service who is entitled to basic pay under
section 204 of this title. The reserve component member may receive the increase for as long as the member is qualified for it, for each regular period of instruction or period of appropriate duty, at which the member is engaged for at least two hours, or for the performance of such other equivalent training, instruction, duty or appropriate duties, as the Secretary may prescribe under
section 206(a) of this title.