AMC 147.A.200(g) The approved basic training course
Typical conversion durations are given below:
(a) The approved basic training course to qualify for conversion from holding a Part-66
aircraft maintenance licence in subcategory A1 to subcategory B1.1 or B2 should not be
less than 1 600 hours and for conversion from holding a Part-66 aircraft maintenance
licence in subcategory A1 to subcategory B1.1 combined with B2 should not be less than
2 200 hours. The course should include between 60 % and 70 % knowledge training.
(b) The approved basic training course to qualify for conversion from holding a Part-66
aircraft maintenance licence in subcategory B1.1 to B2 or category B2 to B1.1 should not
be less than 600 hours, and should include between 80 % and 85 % knowledge training.
(c) The approved basic training course to qualify for conversion from holding a Part-66
aircraft maintenance licence in subcategory B1.2 to subcategory B1.1 should not be less
than 400 hours, and should include between 50 % and 60 % knowledge training.
(d) The approved basic training course to qualify for conversion from holding a Part-66
aircraft maintenance licence in one subcategory A to another subcategory A should not be
less than 70 hours, and should include between 30 % and 40 % knowledge training.