Which of the following parameters is NOT required for an engine shop visit?

The correct answer highlights that the flight crew experience level is not a required parameter for an engine shop visit. When evaluating the need for an engine shop visit, the focus tends to be on technical and performance-related criteria that directly impact the engine's functionality and operational history.

Parameters such as the last full performance check, minimum EGTm (Exhaust Gas Temperature margin), and aircraft flight cycles or flight hours utilization are critical for assessing the engine’s current condition and determining if it requires maintenance or inspection. These metrics provide concrete data on the engine’s performance, maintenance history, and operational stresses.

In contrast, while flight crew experience may influence overall flight safety and operational efficiency, it does not directly correlate with the mechanical or technical state of the engine itself. Therefore, it is not treated as a necessary parameter to consider when planning an engine shop visit. This helps narrow down the focus to parameters that signpost engine health and maintenance needs.