6113 helicopter mechanic

The Marine Corps MOS 6113 is a military occupational specialty code for helicopter mechanics who work on CH-53 helicopters. These mechanics inspect and maintain helicopter airframes and components, and perform duties related to flight line operations. They are trained to repair and maintain systems and components associated with helicopter blades, motors, hydraulics, and landing support gear.

The Marine Corps has other MOS codes for helicopter mechanics, including: 6114: Helicopter Mechanic A/UH-1 6116: Tiltrotor Mechanic MV-22 6122: Helicopter P/P Mechanic T-58

The Marine Corps also has a primary infantry MOS code, 0311.