Westchester resident David A. Herbst, a director of the William H. Hannon Foundation, has been named executive vice president of Corporate Strategies for Los Angeles-based Mercury Air Group, Inc.

Herbst is responsible for helping implement the strategic growth of the company under the direction of its chairman and chief executive officer, Joseph A. Czyzyk. Mercury Air Group provides aviation petroleum products, air cargo services and transportation, as well as support services for international and U.S. commercial airlines, general aviation and U.S. government aircraft on five continents in more than 60 locations.

Prior to rejoining Mercury Air Group, Herbst was in public relations, leading public relations and public affairs campaigns, Mercury officials said. Herbst previously served as director of Corporate Relations at Mercury in the early 1990s when the company was publicly held.

As senior vice president and general manager of MWW Group, a public relations agency, Herbst led the Los Angeles office to historic profitability and gross revenue levels in 2007, according to Mercury.

“I am thrilled to have David back,” Czyzyk said. “He has over a decade of experience with Mercury, having worked here before and having served as a consultant to me.

“His skills, energy and passion will help drive Mercury’s growth for years to come. Today, the aviation industry faces many hurdles and I am glad to have David at my side as we meet these challenges.”

In addition to being a director of the William H. Hannon Foundation, an organization dedicated to the financial support of schools and nonprofit organizations throughout Southern California, Herbst also serves as a member of the board of trustees of Marymount College in Rancho Palos Verdes, on the Bellarmine College of Liberal Arts Advisory Board at his alma mater, Loyola Marymount University, as well as on the board of governors of Otis College of Art and Design in Westchester.

“Mercury is on the move and I am pleased to have been asked to return in a leadership position to help further grow this impressive company,” Herbst said. “Working with Joe [Czyzyk] is truly a pleasure and I am looking forward to helping chart a course for Mercury’s future.”

Herbst has served as president of two chambers of commerce in Southern California and as both a Los Angeles City commissioner and Los Angeles County commissioner. He has also he served as honorary mayor of Westchester.