Published date: 2 October 2023


This Advisory Circular (AC) provides an acceptable means of compliance with the syllabus content in respect of written examinations for Subject 14 (Instrument Systems).

Related rules

This AC relates specifically to Civil Aviation Rule Part 66 Subpart B — Aircraft Maintenance Engineer Licence.

Change notice

Revision 4 adds a note on the online application process and updates the ASPEQ email address in the section Examination Overview:  Subject 14. It also updates the format to current AC standards and adds a version history.