Final answer:
CAR Part V, subpart 73 deals with Service Difficulty Reports (SDRs), which are critical to monitoring the airworthiness of aircraft and identifying potential safety issues.
Step-by-step explanation:
The regulations discussed in CAR Part V, subpart 73 pertain to Service Difficulty Reports (SDRs). These are formal reports that are required when certain kinds of issues or defects are identified in aircraft. The Service Difficulty Report system is crucial for monitoring the continuing airworthiness of an aircraft fleet, as it helps to identify any trends that could suggest underlying problems or flaws in design, construction, or operation of the aircraft. The Canadian Aviation Regulations (CARs) mandate the reporting of certain types of service difficulties to Transport Canada, who then uses these reports to analyze potential safety issues and, if necessary, take action to address them. While AWDS (Airborne Wind Shear Detection Systems), AMOS (Aircraft Maintenance and Operations Systems), and Type Certificates are all relevant to aviation, they are not the focus of CAR Part V, subpart 73 specifically.