 As a unit, MALS-42 is also tasked to support the Fleet Replacement Squadron (FRS) mission during major regional conflicts.MALS-49 Detachment B was redesignated MALS-42 (-) on 18 June 1992.MALS-42 consists of a headquarters unit, MALS-42(-), located at NAS Atlanta, DET A located at Marine Corps Air Station Miramar, DET B located at Naval Air Station Norfolk, and DET C located at Naval Air Station Joint Reserve Base New Orleans, Louisiana.