Which document must be carried aboard each flight of a commercial helicopter according to Transport Canada?

The Aircraft Journey Log is essential for commercial helicopter flights as it serves as a comprehensive record of the aircraft's operational history, including details about every flight undertaken. This document provides crucial information such as flight times, the nature of the flights, maintenance performed, and any incidents that may have occurred.

Having the Aircraft Journey Log on board ensures compliance with transport regulations, as it helps both pilots and regulatory authorities monitor the aircraft's airworthiness and operational integrity. This documentation is vital for maintaining safety standards and regulatory compliance, making it indispensable for commercial operations.

While other documents like the Pilot's License and Flight Plan File are significant in their own right, the Aircraft Journey Log is explicitly mandated for each commercial flight to document the aircraft's journey and history. Consequently, it plays a critical role in the operational accountability of the aircraft's use in commercial aviation.