Which factor might require flight crews to use Crew Resource Management techniques?

Crew Resource Management (CRM) techniques are specifically designed to enhance safety and efficiency during flights by improving teamwork, communication, and decision-making among crew members. These techniques are particularly crucial in complex or emergency situations affecting flight safety, where the stakes are high, and rapid, effective decision-making is essential. In such scenarios, the potential for misunderstandings or poor communication can lead to serious safety risks.

In contrast, elements like ideal weather conditions, high altitude operations with minimal risk, and standard procedures for takeoff and landing typically involve more predictable environments where risks are effectively managed through routine protocols. In these cases, the necessity for advanced CRM techniques is reduced, as crew interactions often follow established norms and the operational focus is more straightforward. Thus, the presence of complexity or emergencies highlights the importance of CRM in ensuring that the crew works together effectively to navigate challenging situations safely.