INTRODUCTION
This Advisory Circular (AC) is provided for information and guidance purposes. It may describe\ an example of an acceptable means, but not the only means, of demonstrating conformity with regulations and standards. This AC on its own does not change, create, amend or permit deviations from regulatory requirements, nor does it establish minimum standards.
The purpose of this document is to provide guidance on of Part V Subpart 21 of the Canadian Aviation Regulations (CARs). It is used in conjunction with staff instruction (SI) 521-009
