The last continuing resolution expired Tuesday. With that expiration, the F.A.A. lost its ability to charge the 7.5% tax on airline tickets, which funds most of the agency’s functions. That means the agency is losing $200 million a week, according to the American Association of Airport Executives, money that is normally used to pay safety inspectors and improve airport facilities.

The agency also lost its ability to write checks or pay its credit card bills. Which leaves the inspectors to pay their own expenses.

government wants to have unmaned drones patrolling the skies.