The required basic maintenance experience depends on:
The minimum experience requirements are shown in the table below.
| AML category / subcategory | No technical education | Skill worker in a technical trade | After completing an approved basic training course under point 147.A.200 |
| A | 3 years | 2 years | 1 year |
| B1.2, B1.4, B1.E, B2L, B3 | 3 years | 2 years | 1 year |
| B1.1, B1.3, B2 | 5 years | 3 years | 2 years |
| L – with the limitation specified in point 66.A.45(h)(ii)(3) | 2 years | – | – |
| L – with the limitation specified in point 66.A.45(h)(ii)(3) | 1 year | – | – |
Note: For category L, skilled-worker status does not provide a reduction of the basic experience requirement; the applicable duration is specified separately in point 66.A.30(a)(2b). Where the one-year experience route is used, the limitation specified in point 66.A.45(h)(ii)(3) is endorsed on the AML.
An approved basic training course under point 147.A.200 should not be confused with preparatory courses for Part-66 examinations. Such preparatory courses alone do not qualify for a reduction of the required basic maintenance experience.
Reference: point 66.A.30(a) and AMC1 66.A.30(a) of Annex III (Part-66), point 147.A.200 of Annex IV (Part-147), and CAA-ZLP-121.