The Part 66 license is required for engineers to obtain ‘approvals’ to work
on aircraft. These approvals are issued by companies who are themselves
approved by the CAA (EASA Part 145) usually after ‘type training’. The
approved engineer can sign off work on the aircraft within his/her license
authority.
So for anyone who aspires to work on civil aircraft as a maintenance engineer
the Part 66 is a must. This means passing all the modules that go to make
up that particular license. The license categories are:
EASA Part 66 Study Modules
Module 2 - Physics
Module 3 - Electrical Fundamentals - Part A
Module 3 - Electrical Fundamentals - Part B Module 3 - Electrical Fundamentals Workbook
Module 4 - Electronic Fundamentals
Module 6 - Materials and Hardware
Module 7 - Maintenance Practices
Module 15 - Gas Turbines
Module 16 - Piston Engines
Module 17 - Propellers