What are the Part-66 licence categories?
Answer
In a Part-145 approved organisation, the different categories of Part-66 licences are:
| LICENCE CATEGORY | For certifying the release to service of work performed on aircraft: | What: |
|---|---|---|
| A | Minor scheduled line maintenance and simple defect rectification
Divided into the following subcategories:
|
Line Maintenance |
| B1 | Maintenance on aircraft structure, power plant and mechanical and electrical systems, avionic systems requiring simple tests to prove their serviceability and no troubleshooting
Divided into B1.1 for turbine aeroplanes, |
Line Maintenance |
| B3 | Maintenance on aeroplane structure, power plant and mechanical and electrical systems; and on avionics systems requiring only simple tests to prove their serviceability and not requiring troubleshooting limited to non-pressurized aeroplanes of 2 000 kg MTOM and below. | Line Maintenance |
| B2 | Maintenance performed on avionic and electrical systems and electric and avionics tasks within powerplant and mechanical systems requiring only simple test and minor scheduled line maintenance and simple defect rectification | Line Maintenance |
| B2L | The same as B2 but limited to the systems endorsed on the licence:
Divided into the following ‘system ratings’: communication/navigation (com/nav), |
Line Maintenance |
| L |
Maintenance on aircraft structure, power plant and mechanical and electrical systems; radio, Emergency Locator Transmitters (ELT) and transponder systems; and Divided into the following subcategories: L1C: composite sailplanes, |
Line Maintenance |
| C | Base maintenance
C with respect to complex motor-powered aircraft and |
Line Maintenance |
| Support staff for: | ||
| B1 | Maintenance on aircraft structure, power plant and mechanical and electrical systems, avionic systems requiring simple tests to prove their serviceability and no troubleshooting (subdivided into B1.1 for turbine aeroplanes, B1.2 for piston engine aeroplanes, B1.3 for Turbine helicopter and B1.4 for piston engine helicopter) | Base Maintenance |
| B2 | Maintenance on avionic and electrical systems and electric and avionics tasks within power plant and mechanical systems requiring only simple test and minor scheduled line maintenance and simple defect rectification | Base Maintenance |
| B2L | The same as B2 but limited to the systems endorsed on the licence:
|
|
| B3 | Maintenance on aeroplane structure, power plant and mechanical and electrical systems; and on avionics systems requiring only simple tests to prove their serviceability and not requiring troubleshooting limited to non-pressurized aeroplanes of 2 000 kg MTOM and below. | Base Maintenance |
| L |
Maintenance on aircraft structure, power plant and mechanical and electrical systems; radio, Emergency Locator Transmitters (ELT) and transponder systems; and Divided into the following subcategories: L1C: composite sailplanes, |
Base Maintenance |
See points 66.A.3 and 66.A.20 of Annex III (Part-66) to Regulation (EU) No 1321/2014 can be found on the Agency website https://www.easa.europa.eu/regulations#regulations-continuing-airworthi… or in the eRules https://www.easa.europa.eu/document-library/easy-access-rules/easy-acce…)