Describe briefly about EASA Part-66?

Question

Describe briefly about EASA Part-66?

Answer 1

Like how briefly?

There are 3 levels of authorization:

Category A (Line Maintenance Mechanic): Basic A category License + Task Training (Level depends on Task Complexity) + Company Certification Authorization for specific Tasks ("A category A aircraft maintenance licence permits the holder to issue certificates of release to service following minor scheduled line maintenance and simple defect rectification within the limits of tasks specifically endorsed on the authorisation. The certification privileges shall be restricted to work that the licence holder has personally performed in a Part-145 organisation"),

Category B1 (Mechanical) and/or B2(Avionics) (Line Maintenance Technician): Basic B1/B2 category License + Type Training (i.e. Line & Base Maintenance i.a.w. ATA 104 Level III) + Company Certification Authorization ("A category B1 aircraft maintenance licence shall permit the holder to issue certificates of release to service following maintenance, including aircraft structure, powerplant and mechanical and electrical systems. Replacement of avionic line replaceable units, requiring simple tests to prove their serviceability, shall also be included in the privileges. Category B1 shall automatically include the appropriate A subcategory", "A category B2 aircraft maintenance licence shall permit the holder to issue certificates of release to service following maintenance on avionic and electrical systems").

Category C (Base Maintenance Engineer): Basic C category license + Type Training (Line & Base Maintenance i.a.w. ATA 104 Level III for the first Type Rating and ATA 104 Level I training for subsequent Aircraft Types of similar technology, otherwise Level III training) + Company Certification Authorization ("A category C aircraft maintenance licence shall permit the holder to issue certificates of release to service following base maintenance on aircraft. The privileges apply to the aircraft in its entirety in a Part-145 organisation").

A significant difference between the US and the European systems is that in the United States, aircraft maintenance technicians (Part 65 Airframe and Powerplant Mechanics) are permitted to work under their own certificates and approve their own work for return to service. European Part 66 certificate holders are required to perform their functions under the aegis of a Part 145 organization for Transport Category and Large (MTOM>5700 kg) Airplanes. The part 145 organization in the EASA system has the authority to approve for return to service. Many non-European countries have been moving toward the European approach, most notably Canada (See Part 571 of the Canadian Aviation Regulations).

Happy flying.