Chief master sergeant Andreotti began his aviation career at Holman Field, St. Paul, as a mechanic for a fixed-base operator (FBO). He served in World War II as a gunner on B-29s, flying 22 combat missions. Following the war he worked in the engine shop for Northwestern Aeronautical at Holman Field. He joined the Minnesota Air National Guard and rose to the rank of chief master sergeant.
After retiring, Andreotti led a team that built a replica Curtiss Oriole for a flight commemorating the Minnesota Air Guard’s anniversary. He co-founded the Southern Minnesota Wing of the Commemorative Air Force and continues to help maintain their aircraft at Fleming Field, South St. Paul.