Aircraft Maintenance Licence Categories

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  • Category A:
    Line Maintenance Mechanic Licence, A Licence has 4 subcategories;
  1. A1 Aeroplanes Turbine
  2. A2 Aeroplanes Piston
  3. A3 Helicopters Turbine
  4. A4 Helicopters Piston
  • Category B1:
    Certifying staff in Line Maintenance and Support Staff in Base Maintenance Licence. Authorised on aircraft structure, powerplant and mechanical and electrical systems, & work on avionic systems requiring only simple tests. B1 licence has 4 subcategories.
  1. B1.1 Aeroplanes Turbine
  2. B1.2 Aeroplanes Piston
  3. B1.3 Helicopters Turbine
  4. B1.4 Helicopters Piston
  • Category B2:
    Certifying staff in Line Maintenance and Support Staff in Base Maintenance Licence. Authorised on avionic and electrical systems & electrical and avionics tasks within powerplant and mechanical systems, requiring only simple tests.
  • Category C:
    Base maintenance Certifying staff licence.