March 16, 2022


Sofema Aviation Services (SAS) considers the challenge of managing competence within the Maintenance Control Centre (MCC)


A competent workforce is essential to the well-being of the aviation system

  • This is particularly relevant within the Maintenance Control Centre.
  • Staff who work in the Maintenance Control Centre environment are exposed to many elements of the regulatory process so need to have an understanding of both the requirement in general and the source of the issue.

What do we Consider as Competence?

An essential element of competence is to ensure:

  • Appropriate training is provided as required to all employees.
  • A process to establish an acceptable assessment of the core skill set.
  • Knowledge of effective organisation processes and procedures.

Roles & Responsibilities MCC Light & MCC Heavy

The typical role of a Maintenance Control Centre in a medium organisation is to manage the in-service activities of the aircraft – MCC light (MCC light little involvement in the generation of work packages).

MCC heavy manages the oversight of the maintenance and many options in between for example – work package assignment to maintenance, repair and overhaul organisations (MROs) and aircraft on ground (AOG) spares supply. Again, multiple solutions are based on the organization’s constraints.

Is MCC part of the CAMO or the CAMO part of MCC?

  • In a smaller organisation, MCC is often integrated into the full CAMO management process.
  • Maintenance Control Centre interfaces with Operations Control Centre to ensure the maximum availability of aircraft and to minimize maintenance downtime.

Part M Objectives & Support

  • Developing Documentation


o Maintenance Contract

o Interface Procedures with AMO & OCC

o Reliability – Ensuring Optimum & Effective Maintenance

o Technical Engineering Understanding Part 21 Subpart G & J functions (Technical Management of Major Mods (STC) Mods & Repairs) – PMA / EPA – TSO & ETSO

o Technical Records – Control and retention of Continuing Airworthiness Records – Management of Recurrent tasks (last done – next due)

o Maintenance Planning

o Management of Routine and Continuing Airworthiness Tasks (CAW)

o Management of Maintenance Due

o Interface with the AMO to ensure oversight of the maintenance In Accordance With (IAW) EASA part M requirements.

o Control of Critical Maintenance Tasks (The Operator has a specific responsibility to ensure regulatory compliance of all elements required to ensure the ongoing compliance and effectiveness of the maintenance product)

Managing the Training & Competence of MCC Staff – Conducting a training needs analysis

  • Typically MCC Staff works for the operators and is connected to the CAMO group.
  • Department Configurations range from MCC light to Full MCC incorporating Line Maintenance Production Planning Control.

General Considerations

  • First, to identify there is no typical MCC – each organisation is structured in a different way and the department structure will depend very much on many of the following factors:

o Number of aircraft operated

o Type of aircraft operated

o Number of employees within the CAMO

o Number of employees within the MCC or planned

o Choice of Software to support the MCC Function

o Stand alone MCC

o Integrated within the OPS environment (OCC)

o Integrated within the Maintenance environment MCC / AMO

o Provision of Maintenance (Same organisation or 145 Service Provider / Providers

o How Many CAMO activities are outsourced?

o Integration of Defect Analysis and Reliability how is it performed?

o Elected MCC Planning function – from Deep Planning to Line Planning

o How is out of phase maintenance managed?

o Supply Chain, AOG and robbery management who is responsible for how big is the team dedicated 24 / 7 or other options

Next Steps


Aircraft Maintenance, Aircraft Technical Records, Airworthiness, AMO, Aviation Competence, Aviation MCC, CAMO, Continuing Airworthiness Tasks (CAW), EASA Part 21 Subpart J, EASA Part M, ETSO, Line Maintenance, Maintenance Control, Maintenance Control Centre (MCC), Maintenance Planning, MCC Heavy, MCC Light, OCC, Part 21 Subpart G, SAS blogs