[FAA Employee's Appeal of Claims Group's Denial of Waiver]

A reemployed annuitant of the Federal Aviation Administration (FAA) appealed the Claims Group's denial of his request for a waiver of salary overpayments. The overpayments occurred because FAA erroneously calculated the amount of his annuity that was to be deducted from his salary payments. GAO held that: (1) the overpayments resulting from one lump-sum, backpay check should be waived because FAA assured the claimant that there was no error; and (2) subsequent recurring overpayments should not be waived because the claimant should have been aware that he was being overpaid. Accordingly, the waiver was partially granted.