Which SSSn covers emergency shut down for APU?

The correct choice concerning the emergency shutdown for the Auxiliary Power Unit (APU) is associated with the series designated as 49-10-03. This reference is part of the technical order documentation that outlines essential maintenance and operational procedures specific to the APU system.

In the context of emergency shutdown procedures, this section is crucial as it details the steps required to safely and effectively deactivate the APU in an emergency situation. It typically includes important safety measures, the sequence of actions to perform, and any indicators that must be monitored during the shutdown process. Proper knowledge of these procedures is vital for ensuring safety on board and preventing potential hazards that could arise from improper handling of the APU.

Other available options do not pertain to the emergency shutdown process for the APU, instead focusing on different systems or operational procedures unrelated to emergency protocols. This difference emphasizes the importance of consulting the correct reference materials for accurate and safe maintenance practices.