An engine shortage is the newest problem to hit the F-35 enterprise

https://www.defensenews.com/air/2021/02/12/an-engine-shortage-is-the-newest-problem-to-hit-the-f-35-enterprise/

By 2022, five to six percent of the F-35 fleet could be without engines, a defense official said.

https://peterholland765.wordpress.com/2021/02/15/an-engine-shortage-is-the-newest-problem-to-hit-the-f-35-enterprise-2/