Former Pennsylvania Secretary of Revenue David L. Donahoe has been named interim CEO of the Port Authority of Allegheny County.

Donahoe will replace Ellen M. McLean, who is leaving May 31 with the expiration of her contract. Donahoe’s first day as interim CEO will be June 1. The Port Authority board is conducting a search for a permanent CEO.

Donahoe has been Pennsylvania’s revenue secretary, director of aviation for the Allegheny County Airport Authority, executive secretary to Mayor Richard S.…