Have to say it - “that depends” -on Service policy, which can change with current state of retention, as a force shaping tool.
Speaking generally, if an AD officer is at grad school full time as a PCS assignment, it might be a two for one deal - 2 years grad school might require 4 years active duty “payback.” Or, if Tuition Assistance is being used for distance learning or after-hours degree classes, it may be a different formula. Much depends on whether the additional time is required to run consecutively or concurrently with other ADSO periods.
To earn their full Post 9/11 VA educational benefit, SA grads have to serve another 36 months after their initial ADSO. They can then separate and take advantage of that generous benefit.
This question gets asked regularly. A quick search produced:
Couldn't find it in quick search... 5 years (academy) + 2 (flight school) = 7 owed, after receiving wings. Is this correct? Heard it might be 5 + 4 = 9 (again after wings). Is it the same for Marine Corps aviation? If there's a wait to get into flight school does that time count...
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@Hurricane12 is an AD aviator out of USNA, and while not a primary source, is a trustworthy poster. Hope she or another knowledgeable poster check in with the latest pilot/NFO commitment period. It doesn’t start until after winging.