What could happen if emergency equipment is not marked by a placard?

Not marking emergency equipment with a placard can lead to the risk of the equipment being overlooked during a preflight check. Placards serve as important visual cues that inform crew members of the equipment's location and its intended use. Without these indicators, there is a heightened chance that crew members may not notice the emergency equipment when performing preflight safety inspections. This oversight could lead to serious safety risks during an in-flight emergency when quick access to the appropriate equipment is crucial for ensuring passenger safety.

The role of placards is critical in aviation safety protocols, emphasizing the need for clear identification and accessibility of emergency equipment for effective responses in emergencies.