Which of the following measures is NOT a recognized priority for the use of the flight deck observer seat?

The priority for the use of the flight deck observer seat is typically aligned with safety and protocol standards established within aviation regulations. In this context, the correct answer reflects that assessment by flight crew is not a recognized priority.

The flight deck observer seat is primarily designated for individuals who are specifically authorized to observe or support the flight crew during operations. These include Transport Canada representatives, who may need to inspect and ensure compliance with regulations, Air Canada evaluators who are tasked with assessing operations for training and safety, and holders of a letter of authorization, who have received explicit permission to be on the flight deck for particular purposes.

In contrast, the notion of assessment by flight crew does not fit into the established protocol for this seat's use. The flight crew themselves are not considered an independent observation authority and do not typically utilize the observer seat for their own assessment of operations. Instead, it's designed for external evaluators and authorized personnel. Thus, this nuance clarifies why the flight crew's assessment is not considered a priority, while the other roles are directly connected to regulatory oversight and operational improvement.