Which condition typically requires consultation of the EOCC guide?

The consultation of the Engineering Operational Casualty Control (EOCC) guide is particularly essential when addressing a bowed rotor casualty. This is because the EOCC guide provides detailed procedures and guidelines for managing specific engineering casualties that may occur during operations. A bowed rotor can lead to severe operational issues, including vibration problems and possible failure of propulsion systems.

In such a situation, the EOCC guide helps personnel determine the appropriate steps for assessment, control, and corrective actions to mitigate risks and resolve the casualty effectively. It’s designed specifically to handle emergencies and abnormal situations that require a standardized response to ensure safety and operational integrity.

In contrast, routine maintenance, daily operational checks, and equipment calibration are typically guided by standard operating procedures and maintenance manuals rather than the EOCC, as these tasks do not directly involve addressing critical casualties. Hence, when a serious issue like a bowed rotor arises, it's vital to consult the EOCC to ensure the proper response is followed.