Travis, 349th icon hanges up uniform after 34 years of service Published June 2, 2015 By Master Sgt. Rachel Martinez 349th Public Affair TRAVIS AIR FORCE BASE, Calif. -- Chief Master Sgt. William Morrissey, 945th Aircraft Maintenance Squadron superintendent, retires during a ceremony May 16, 2015, at Travis Air Force Base, Calif. Morrissey retired after more than 34 years of service, all of which he spent assigned to units at Travis.