X,
You hit the nail on the head:
Financial Management Regulation 7A, Chapter 66:
"660302. Waiver of CSB Recoupment. The Secretary of the Military Department concerned may waive, in whole or in part, the required CSB refund if the Secretary determines that recovery would be against equity and good conscience or contrary to the best interests of the
United States.
A. The Secretary of the Military Department shall waive the required refund if the member:
1. Dies, or
2. Is separated or retired as a result of a physical disability under 10
U.S.C., Chapter 61, or
3. Is separated under a Service offer for early retirement (such as
TERA (Temporary Early Retirement Authority)) or separation program."
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