What must you verify about the Lav Fire Extinguisher for the aft lavatory?

Verifying that the Lav Fire Extinguisher for the aft lavatory is fully charged is essential for ensuring readiness in case of a fire emergency. A fully charged extinguisher indicates that it contains the appropriate amount of extinguishing agent and is operational when needed. Fire extinguishers typically have a pressure gauge that indicates their charge status, and a properly maintained unit should be in the green zone, signifying that it is ready for use.

Understanding this, it's critical to regularly check fire extinguishers as part of standard safety protocols on an aircraft. This inspection ensures that all safety measures are in place and that personnel are equipped to handle potential fire incidents effectively and safely.