Two senior House Democrats are threatening to not support inserting additional F-35s over the base budget request in fiscal 2022 because of a laundry list of problems, including a large backlog the program is facing at the depots.

Lockheed Martin has disclosed that the company waived $60 million in fees because of delays in F-35 Technology Refresh-3 and Block 4 development.

The Pentagon has directed a “strategic pause” on transitioning the F-35’s autonomic logistics information system to a new, cloud-based network because of funding cuts.