Aviation Communication Systems Technicians perform and supervise maintenance of radios and communications systems found within selected units of the Marine Air Control Group. Tasks include installation, operation, performance testing, alignment and troubleshooting of all voice communications equipment, encryption devices, electronic assemblies and subassemblies, fiber optic cables, and system software for radios and telecommunications equipment used within the Marine Air Command and Control Systems (MACCS). They make periodic inspections and perform preventive maintenance; use proper safety procedures in system maintenance and operation; diagnose and isolate malfunction to the fault, remove and replace LRU (line replaceable unit); and verify that the malfunction has been corrected. They maintain diagnostic and operational tools, support, and test equipment; maintain accountability of all parts of communication systems including software, spare parts, and in requisitioning supplies and spare parts; maintain necessary records of maintenance and compile data for reports. The Aviation Communications Systems Managers Course is available for skill enhancement training.

The Electro-Optical Ordnance Repairer performs electro-optical maintenance and repair to ground ordnance laser and night vision devices, small missiles systems, and other fire control equipment. Duties also include performing mechanical, mechanical-optical and electrical repairs to include inspecting, troubleshooting and adjusting fire control instruments and systems. The Electro-Optical Ordnance Repairer, grades Private through Corporal, also completes basic shop administrative forms and records using technical publications. At the grades of Sergeant and above, the Electro-Optical Ordnance Repairer trains, supervises, and performs various duties and tasks incident to the management of an Electro-Optical Ordnance Repair shop or facility.