Headquarters and Maintenance Squadron 39 was reactivated at Camp Pendleton, California on 1 September 1978 to provide support for the UH1 "Huey", AH1 "Cobra", and OV-10 "Bronco".
On January 2003, the squadron deployed as a command in support of Operation Enduring Freedom and Operation Iraqi Freedom (OIF) both aboard the SS Curtiss (T-AVB-4) aviation logistics support ship, and ashore at Ali Al Salem Air Base, Kuwait and at various Forward Operating Bases throughout Iraq.