ATLANTA — Delta Air Lines Inc. has appointed a former chief executive of Greyhound Lines Inc. as its new executive vice president of operations, company officials said late last week.

Stephen Gorman, 52, started his new post on Saturday. He will replace Joe Kolshak, who elected to retire after 20 years of service with the Atlanta-based airline, according to a statement from the company. Delta has a major hub in Salt Lake City.

Gorman, a former executive vice president of flight operations and technical operations at Minneapolis-based Northwest Airlines Corp., will be responsible for flight operations, technical operations, operations control center, safety, security, airport customer service and Delta Global Services.

"His experience, knowledge of the airline industry and ability to deliver superior results make him an ideal leader to build on the extraordinary operational performance Delta people deliver every day," Delta CEO Richard Anderson said in a statement.

Gorman recently led a four-year turnaround of the Dallas-based bus company. He also previously served as president of the North America division of the Winston-Salem, N.C.-based Krispy Kreme Doughnuts Inc., and, before that, was at Northwest.