The aviation agency's budget is growing faster than most Federal programs.
The aviation agency is looking it over but has offered no judgments.
Officials at the aviation agency say the pay incentive program is a success.
The aviation agency's existing system costs about $100 million a year to maintain.
The aviation agency did not return a call for comment.
Later in the day, the French aviation agency took the same action.
In all, the aviation agency has about 90 equipment programs under way that are expected to cost $16 billion over the next decade.
But he said the aviation agency had no information about what happened later.
The aviation agency is currently spending about $400,000 a year on research into the problem.
But the aviation agency has not indicated what course it will take.