For (M) Procedures, who normally completes the procedures?

• A. Flight crew
• B. Ground crew
• C. Company Technician
• D. Maintenance (mx)

Answer: (D)

Maintenance procedures are tasks that keep the aircraft airworthy, including troubleshooting, component replacement, system checks, and routine servicing. These are specialized actions that require proper training, tools, and formal documentation. The group assigned to carry out these tasks is the maintenance team, often referred to as maintenance (mx). They work under maintenance control, follow approved manuals, and sign off when the work is complete and the aircraft is released back to service. Flight crew focus on operating the aircraft and may perform certain operational checks, but they do not perform the maintenance work itself. Ground crew handle servicing, towing, fueling, and cabin/externals support, not the actual maintenance procedures. A company technician is a role within the maintenance organization, but the formal designation for who normally completes these procedures is maintenance (mx).