john smith quoted a news report that said
... Senator Sam Brownback (R-KS) ...
[pointed] out that the President's budget shows that the
upcoming FAA reauthorization bill and its user fees and fuel tax scheme
would raise LESS revenue than simply extending current law and tax
rates.

Since FAA wants to increase revenue and since implementing user fees would
reduce FAA revenue, FAA should pay user rebates.

Paying user rebates will encourage pilots to fly more hours which will cause
them to buy more fuel which will increase fuel tax revenue.