Where is the fire containment bag located on the CRJ 550?

The fire containment bag is located underneath the last row A/CL in the CRJ 550. This location is specifically chosen to ensure quick access in the event of an onboard fire related to lithium batteries and other materials that may be at risk. The accessibility of the fire containment bag is crucial for crew members to effectively manage a potential fire incident, allowing them to respond promptly.

In context to other choices, locating the bag under the last row B/CL, near the front galley, or in the overhead bin would not provide the same level of accessibility or strategic advantage for immediate action during an unresolved emergency situation. Each of these alternative locations could potentially hinder the speed and efficiency with which crew members can deploy the fire containment bag when needed.